Find impl witnesses in facets (#5060)

Impl lookup for an interface `I` for a facet with facet type requiring
an interface `I` will now succeed, getting the witness from the facet.

---------

Co-authored-by: Josh L <josh11b@users.noreply.github.com>
Co-authored-by: Dana Jansens <danakj@orodu.net>

toolchain/check/impl_lookup.cpp

@@ -8,6 +8,8 @@
 #include "toolchain/check/diagnostic_helpers.h"
 #include "toolchain/check/generic.h"
 #include "toolchain/check/import_ref.h"
+#include "toolchain/check/inst.h"
+#include "toolchain/check/type.h"
 #include "toolchain/check/type_completion.h"
 #include "toolchain/sem_ir/ids.h"
 #include "toolchain/sem_ir/impl.h"
@@ -296,6 +298,59 @@ static auto GetWitnessIdForImpl(
       context.sem_ir(), specific_id, impl.witness_id));
 }
 
+// In the case where `facet_const_id` is a facet, see if its facet type requires
+// that `specific_interface` is implemented. If so, return the witness from the
+// facet.
+static auto FindWitnessInFacet(
+    Context& context, SemIR::LocId loc_id, SemIR::ConstantId facet_const_id,
+    const SemIR::SpecificInterface& specific_interface) -> SemIR::InstId {
+  SemIR::InstId facet_inst_id =
+      context.constant_values().GetInstId(facet_const_id);
+  // TODO: Should we convert from a FacetAccessType to its facet here?
+  SemIR::TypeId facet_type_id = context.insts().Get(facet_inst_id).type_id();
+  if (auto facet_type_inst =
+          context.types().TryGetAs<SemIR::FacetType>(facet_type_id)) {
+    auto complete_facet_type_id = RequireCompleteFacetType(
+        context, facet_type_id, loc_id, *facet_type_inst,
+        [&]() -> DiagnosticBuilder {
+          // TODO: Find test that triggers this code path.
+          CARBON_FATAL("impl lookup for with incomplete facet type");
+        });
+    if (complete_facet_type_id.has_value()) {
+      const auto& complete_facet_type =
+          context.complete_facet_types().Get(complete_facet_type_id);
+      for (auto interface : complete_facet_type.required_interfaces) {
+        if (interface == specific_interface) {
+          // TODO: Need to get the right witness when there are multiple.
+          return GetOrAddInst(
+              context, loc_id,
+              SemIR::FacetAccessWitness{
+                  .type_id = GetSingletonType(
+                      context, SemIR::WitnessType::SingletonInstId),
+                  .facet_value_inst_id = facet_inst_id});
+        }
+      }
+    }
+  }
+  return SemIR::InstId::None;
+}
+
+static auto FindWitnessInImpls(
+    Context& context, SemIR::LocId loc_id, SemIR::ConstantId type_const_id,
+    const SemIR::SpecificInterface& specific_interface) -> SemIR::InstId {
+  auto& stack = context.impl_lookup_stack();
+  for (const auto& impl : context.impls().array_ref()) {
+    stack.back().impl_loc = impl.definition_id;
+    auto result_witness_id = GetWitnessIdForImpl(context, loc_id, type_const_id,
+                                                 specific_interface, impl);
+    if (result_witness_id.has_value()) {
+      // We found a matching impl; don't keep looking for this interface.
+      return result_witness_id;
+    }
+  }
+  return SemIR::InstId::None;
+}
+
 auto LookupImplWitness(Context& context, SemIR::LocId loc_id,
                        SemIR::ConstantId type_const_id,
                        SemIR::ConstantId interface_const_id) -> SemIR::InstId {
@@ -346,26 +401,25 @@ auto LookupImplWitness(Context& context, SemIR::LocId loc_id,
   // them in the same order as they are found in the `CompleteFacetType`, which
   // is the same order as in `interfaces` here.
   for (const auto& interface : interfaces) {
-    bool found_witness = false;
-    for (const auto& impl : context.impls().array_ref()) {
-      stack.back().impl_loc = impl.definition_id;
-      auto result_witness_id =
-          GetWitnessIdForImpl(context, loc_id, type_const_id, interface, impl);
-      if (result_witness_id.has_value()) {
-        result_witness_ids.push_back(result_witness_id);
-        // We found a matching impl; don't keep looking for this `interface`,
-        // move onto the next.
-        found_witness = true;
-        break;
-      }
+    // TODO: Since both `interfaces` and `type_const_id` are sorted lists, do an
+    // O(N+M) merge instead of O(N*M) nested loops.
+    auto result_witness_id =
+        FindWitnessInFacet(context, loc_id, type_const_id, interface);
+    if (!result_witness_id.has_value()) {
+      result_witness_id =
+          FindWitnessInImpls(context, loc_id, type_const_id, interface);
     }
-    if (!found_witness) {
+    if (result_witness_id.has_value()) {
+      result_witness_ids.push_back(result_witness_id);
+    } else {
       // At least one queried interface in the facet type has no witness for the
       // given type, we can stop looking for more.
       break;
     }
   }
   stack.pop_back();
+  // TODO: Validate that the witness satisfies the other requirements in
+  // `interface_const_id`.
 
   // All interfaces in the query facet type must have been found to be available
   // through some impl (TODO: or directly on the type itself if `type_const_id`

toolchain/check/testdata/builtin_conversions/no_prelude/convert_facet_value_to_narrowed_facet_type.carbon

@@ -0,0 +1,1284 @@
+// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
+// Exceptions. See /LICENSE for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+// AUTOUPDATE
+// TIP: To test this file alone, run:
+// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/builtin_conversions/no_prelude/convert_facet_value_to_narrowed_facet_type.carbon
+// TIP: To dump output, run:
+// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/builtin_conversions/no_prelude/convert_facet_value_to_narrowed_facet_type.carbon
+
+// --- core.carbon
+package Core;
+
+interface ImplicitAs(T:! type) {
+  fn Convert[self: Self]() -> T;
+}
+
+interface BitAnd {
+  fn Op[self: Self](other: Self) -> Self;
+}
+
+impl forall [T:! type] T as BitAnd {
+  fn Op[self: Self](other: Self) -> Self = "type.and";
+}
+
+// --- convert_to_narrowed_facet_type.carbon
+library "[[@TEST_NAME]]";
+
+import Core;
+
+interface Eats {}
+interface Animal {}
+
+fn Feed[T:! Eats](e: T) {}
+
+fn HandleAnimal[U:! Animal & Eats](a: U) { Feed(a); }
+
+// --- bigger.carbon
+library "[[@TEST_NAME]]";
+
+import Core;
+
+interface Eats {}
+interface Animal {}
+interface Tame {}
+
+fn FeedTame[V:! Tame & Eats](v: V) {}
+
+fn HandleTameAnimal[W:! Eats & Animal & Tame](w: W) {
+  FeedTame(w);
+}
+
+// --- fail_todo_with_blanket.carbon
+library "[[@TEST_NAME]]";
+
+import Core;
+
+interface Eats {}
+interface Animal {}
+interface Tame {}
+
+impl forall [A:! Animal] A as Eats {}
+
+fn FeedTame2[V:! Tame & Eats](v: V) {}
+
+fn HandleTameAnimal2[W:! Animal & Tame](w: W) {
+  // CHECK:STDERR: fail_todo_with_blanket.carbon:[[@LINE+10]]:3: error: cannot implicitly convert value of type `type` to `Eats & Tame` [ImplicitAsConversionFailure]
+  // CHECK:STDERR:   FeedTame2(w);
+  // CHECK:STDERR:   ^~~~~~~~~~~~
+  // CHECK:STDERR: fail_todo_with_blanket.carbon:[[@LINE+7]]:3: note: type `type` does not implement interface `Core.ImplicitAs(Eats & Tame)` [MissingImplInMemberAccessNote]
+  // CHECK:STDERR:   FeedTame2(w);
+  // CHECK:STDERR:   ^~~~~~~~~~~~
+  // CHECK:STDERR: fail_todo_with_blanket.carbon:[[@LINE-9]]:1: note: while deducing parameters of generic declared here [DeductionGenericHere]
+  // CHECK:STDERR: fn FeedTame2[V:! Tame & Eats](v: V) {}
+  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  // CHECK:STDERR:
+  FeedTame2(w);
+}
+
+// CHECK:STDOUT: --- core.carbon
+// CHECK:STDOUT:
+// CHECK:STDOUT: constants {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.96f: type = generic_interface_type @ImplicitAs [concrete]
+// CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.96f = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.07f: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0f3: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.419: type = facet_access_type %Self.0f3 [symbolic]
+// CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%T) [symbolic]
+// CHECK:STDOUT:   %Convert: %Convert.type = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type %ImplicitAs.type.07f [symbolic]
+// CHECK:STDOUT:   %assoc0.a50: %ImplicitAs.assoc_type = assoc_entity element0, @ImplicitAs.%Convert.decl [symbolic]
+// CHECK:STDOUT:   %BitAnd.type: type = facet_type <@BitAnd> [concrete]
+// CHECK:STDOUT:   %Self.e44: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.560: type = facet_access_type %Self.e44 [symbolic]
+// CHECK:STDOUT:   %Op.type.613: type = fn_type @Op.1 [concrete]
+// CHECK:STDOUT:   %Op.d98: %Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %BitAnd.assoc_type: type = assoc_entity_type %BitAnd.type [concrete]
+// CHECK:STDOUT:   %assoc0.121: %BitAnd.assoc_type = assoc_entity element0, @BitAnd.%Op.decl [concrete]
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (@impl.%Op.decl), @impl(%T) [symbolic]
+// CHECK:STDOUT:   %Op.type.28d: type = fn_type @Op.2, @impl(%T) [symbolic]
+// CHECK:STDOUT:   %Op.902: %Op.type.28d = struct_value () [symbolic]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic]
+// CHECK:STDOUT:   %BitAnd.facet: %BitAnd.type = facet_value %T, %impl_witness [symbolic]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: file {
+// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
+// CHECK:STDOUT:     .ImplicitAs = %ImplicitAs.decl
+// CHECK:STDOUT:     .BitAnd = %BitAnd.decl
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %ImplicitAs.decl: %ImplicitAs.type.96f = interface_decl @ImplicitAs [concrete = constants.%ImplicitAs.generic] {
+// CHECK:STDOUT:     %T.patt.loc3_22.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc3_22.2 (constants.%T.patt)]
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %T.loc3_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc3_22.2 (constants.%T)]
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %BitAnd.decl: type = interface_decl @BitAnd [concrete = constants.%BitAnd.type] {} {}
+// CHECK:STDOUT:   impl_decl @impl [concrete] {
+// CHECK:STDOUT:     %T.patt.loc11_14.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc11_14.2 (constants.%T.patt)]
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc11_14.1 [symbolic = %T.loc11_14.2 (constants.%T)]
+// CHECK:STDOUT:     %BitAnd.ref: type = name_ref BitAnd, file.%BitAnd.decl [concrete = constants.%BitAnd.type]
+// CHECK:STDOUT:     %T.loc11_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_14.2 (constants.%T)]
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (@impl.%Op.decl), @impl(constants.%T) [symbolic = @impl.%impl_witness (constants.%impl_witness)]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic interface @ImplicitAs(%T.loc3_22.1: type) {
+// CHECK:STDOUT:   %T.loc3_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc3_22.2 (constants.%T)]
+// CHECK:STDOUT:   %T.patt.loc3_22.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc3_22.2 (constants.%T.patt)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T.loc3_22.2)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
+// CHECK:STDOUT:   %Self.2: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f3)]
+// CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%T.loc3_22.2) [symbolic = %Convert.type (constants.%Convert.type)]
+// CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type) = struct_value () [symbolic = %Convert (constants.%Convert)]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type)]
+// CHECK:STDOUT:   %assoc0.loc4_32.2: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %Convert.decl [symbolic = %assoc0.loc4_32.2 (constants.%assoc0.a50)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   interface {
+// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f3)]
+// CHECK:STDOUT:     %Convert.decl: @ImplicitAs.%Convert.type (%Convert.type) = fn_decl @Convert [symbolic = @ImplicitAs.%Convert (constants.%Convert)] {
+// CHECK:STDOUT:       %self.patt: @Convert.%Self.as_type.loc4_20.1 (%Self.as_type.419) = binding_pattern self
+// CHECK:STDOUT:       %self.param_patt: @Convert.%Self.as_type.loc4_20.1 (%Self.as_type.419) = value_param_pattern %self.patt, call_param0
+// CHECK:STDOUT:       %return.patt: @Convert.%T (%T) = return_slot_pattern
+// CHECK:STDOUT:       %return.param_patt: @Convert.%T (%T) = out_param_pattern %return.patt, call_param1
+// CHECK:STDOUT:     } {
+// CHECK:STDOUT:       %T.ref: type = name_ref T, @ImplicitAs.%T.loc3_22.1 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:       %self.param: @Convert.%Self.as_type.loc4_20.1 (%Self.as_type.419) = value_param call_param0
+// CHECK:STDOUT:       %.loc4_20.1: type = splice_block %.loc4_20.3 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type.419)] {
+// CHECK:STDOUT:         %.loc4_20.2: @Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%T) [symbolic = %Self (constants.%Self.0f3)]
+// CHECK:STDOUT:         %Self.ref: @Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self.0f3)]
+// CHECK:STDOUT:         %Self.as_type.loc4_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type.419)]
+// CHECK:STDOUT:         %.loc4_20.3: type = converted %Self.ref, %Self.as_type.loc4_20.2 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type.419)]
+// CHECK:STDOUT:       }
+// CHECK:STDOUT:       %self: @Convert.%Self.as_type.loc4_20.1 (%Self.as_type.419) = bind_name self, %self.param
+// CHECK:STDOUT:       %return.param: ref @Convert.%T (%T) = out_param call_param1
+// CHECK:STDOUT:       %return: ref @Convert.%T (%T) = return_slot %return.param
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %assoc0.loc4_32.1: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %Convert.decl [symbolic = %assoc0.loc4_32.2 (constants.%assoc0.a50)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     .Self = %Self.1
+// CHECK:STDOUT:     .T = <poisoned>
+// CHECK:STDOUT:     .Convert = %assoc0.loc4_32.1
+// CHECK:STDOUT:     witness = (%Convert.decl)
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @BitAnd {
+// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e44]
+// CHECK:STDOUT:   %Op.decl: %Op.type.613 = fn_decl @Op.1 [concrete = constants.%Op.d98] {
+// CHECK:STDOUT:     %self.patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = binding_pattern self
+// CHECK:STDOUT:     %self.param_patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = value_param_pattern %self.patt, call_param0
+// CHECK:STDOUT:     %other.patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = binding_pattern other
+// CHECK:STDOUT:     %other.param_patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = value_param_pattern %other.patt, call_param1
+// CHECK:STDOUT:     %return.patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = return_slot_pattern
+// CHECK:STDOUT:     %return.param_patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = out_param_pattern %return.patt, call_param2
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %Self.ref.loc8_37: %BitAnd.type = name_ref Self, @BitAnd.%Self [symbolic = %Self (constants.%Self.e44)]
+// CHECK:STDOUT:     %Self.as_type.loc8_37: type = facet_access_type %Self.ref.loc8_37 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:     %.loc8_37: type = converted %Self.ref.loc8_37, %Self.as_type.loc8_37 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:     %self.param: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = value_param call_param0
+// CHECK:STDOUT:     %.loc8_15.1: type = splice_block %.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)] {
+// CHECK:STDOUT:       %Self.ref.loc8_15: %BitAnd.type = name_ref Self, @BitAnd.%Self [symbolic = %Self (constants.%Self.e44)]
+// CHECK:STDOUT:       %Self.as_type.loc8_15.2: type = facet_access_type %Self.ref.loc8_15 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:       %.loc8_15.2: type = converted %Self.ref.loc8_15, %Self.as_type.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %self: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = bind_name self, %self.param
+// CHECK:STDOUT:     %other.param: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = value_param call_param1
+// CHECK:STDOUT:     %.loc8_28.1: type = splice_block %.loc8_28.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)] {
+// CHECK:STDOUT:       %Self.ref.loc8_28: %BitAnd.type = name_ref Self, @BitAnd.%Self [symbolic = %Self (constants.%Self.e44)]
+// CHECK:STDOUT:       %Self.as_type.loc8_28: type = facet_access_type %Self.ref.loc8_28 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:       %.loc8_28.2: type = converted %Self.ref.loc8_28, %Self.as_type.loc8_28 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %other: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = bind_name other, %other.param
+// CHECK:STDOUT:     %return.param: ref @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560) = return_slot %return.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %assoc0: %BitAnd.assoc_type = assoc_entity element0, %Op.decl [concrete = constants.%assoc0.121]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   .Op = %assoc0
+// CHECK:STDOUT:   witness = (%Op.decl)
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic impl @impl(%T.loc11_14.1: type) {
+// CHECK:STDOUT:   %T.loc11_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_14.2 (constants.%T)]
+// CHECK:STDOUT:   %T.patt.loc11_14.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc11_14.2 (constants.%T.patt)]
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (%Op.decl), @impl(%T.loc11_14.2) [symbolic = %impl_witness (constants.%impl_witness)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type: type = fn_type @Op.2, @impl(%T.loc11_14.2) [symbolic = %Op.type (constants.%Op.type.28d)]
+// CHECK:STDOUT:   %Op: @impl.%Op.type (%Op.type.28d) = struct_value () [symbolic = %Op (constants.%Op.902)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @impl.%T.loc11_14.2 (%T) [symbolic = %require_complete (constants.%require_complete)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   impl: %T.ref as %BitAnd.ref {
+// CHECK:STDOUT:     %Op.decl: @impl.%Op.type (%Op.type.28d) = fn_decl @Op.2 [symbolic = @impl.%Op (constants.%Op.902)] {
+// CHECK:STDOUT:       %self.patt: @Op.2.%T (%T) = binding_pattern self
+// CHECK:STDOUT:       %self.param_patt: @Op.2.%T (%T) = value_param_pattern %self.patt, call_param0
+// CHECK:STDOUT:       %other.patt: @Op.2.%T (%T) = binding_pattern other
+// CHECK:STDOUT:       %other.param_patt: @Op.2.%T (%T) = value_param_pattern %other.patt, call_param1
+// CHECK:STDOUT:       %return.patt: @Op.2.%T (%T) = return_slot_pattern
+// CHECK:STDOUT:       %return.param_patt: @Op.2.%T (%T) = out_param_pattern %return.patt, call_param2
+// CHECK:STDOUT:     } {
+// CHECK:STDOUT:       %Self.ref.loc12_37: type = name_ref Self, @impl.%T.ref [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:       %self.param: @Op.2.%T (%T) = value_param call_param0
+// CHECK:STDOUT:       %Self.ref.loc12_15: type = name_ref Self, @impl.%T.ref [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:       %self: @Op.2.%T (%T) = bind_name self, %self.param
+// CHECK:STDOUT:       %other.param: @Op.2.%T (%T) = value_param call_param1
+// CHECK:STDOUT:       %Self.ref.loc12_28: type = name_ref Self, @impl.%T.ref [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:       %other: @Op.2.%T (%T) = bind_name other, %other.param
+// CHECK:STDOUT:       %return.param: ref @Op.2.%T (%T) = out_param call_param2
+// CHECK:STDOUT:       %return: ref @Op.2.%T (%T) = return_slot %return.param
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     .Op = %Op.decl
+// CHECK:STDOUT:     witness = file.%impl_witness
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Convert(@ImplicitAs.%T.loc3_22.1: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f)) {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
+// CHECK:STDOUT:   %Self: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0f3)]
+// CHECK:STDOUT:   %Self.as_type.loc4_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type.419)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Convert.%Self.as_type.loc4_20.1 (%Self.as_type.419)]() -> @Convert.%T (%T);
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.1(@BitAnd.%Self: %BitAnd.type) {
+// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.e44)]
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.560)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560)](%other.param_patt: @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560)) -> @Op.1.%Self.as_type.loc8_15.1 (%Self.as_type.560);
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.2(@impl.%T.loc11_14.1: type) {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.2.%T (%T)](%other.param_patt: @Op.2.%T (%T)) -> @Op.2.%T (%T) = "type.and";
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(constants.%T) {
+// CHECK:STDOUT:   %T.loc3_22.2 => constants.%T
+// CHECK:STDOUT:   %T.patt.loc3_22.2 => constants.%T
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Convert(constants.%T, constants.%Self.0f3) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.07f
+// CHECK:STDOUT:   %Self => constants.%Self.0f3
+// CHECK:STDOUT:   %Self.as_type.loc4_20.1 => constants.%Self.as_type.419
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(@Convert.%T) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(%T.loc3_22.2) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(constants.%Self.e44) {
+// CHECK:STDOUT:   %Self => constants.%Self.e44
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%Self.as_type.560
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(constants.%T) {
+// CHECK:STDOUT:   %T.loc11_14.2 => constants.%T
+// CHECK:STDOUT:   %T.patt.loc11_14.2 => constants.%T
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(%T.loc11_14.2) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.2(constants.%T) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(constants.%BitAnd.facet) {
+// CHECK:STDOUT:   %Self => constants.%BitAnd.facet
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%T
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: --- convert_to_narrowed_facet_type.carbon
+// CHECK:STDOUT:
+// CHECK:STDOUT: constants {
+// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
+// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
+// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %T.1b5: %Eats.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %T.patt.6be: %Eats.type = symbolic_binding_pattern T, 0 [symbolic]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.1b5 [symbolic]
+// CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
+// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
+// CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
+// CHECK:STDOUT:   %require_complete.c75: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %BitAnd.type: type = facet_type <@BitAnd> [concrete]
+// CHECK:STDOUT:   %Self.25f: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %BitAnd.assoc_type: type = assoc_entity_type %BitAnd.type [concrete]
+// CHECK:STDOUT:   %assoc0: %BitAnd.assoc_type = assoc_entity element0, imports.%Core.import_ref.a93 [concrete]
+// CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %T.patt.e01: type = symbolic_binding_pattern T, 0 [symbolic]
+// CHECK:STDOUT:   %impl_witness.db8: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %Op.type.f99: type = fn_type @Op.1, @impl(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %Op.05a: %Op.type.f99 = struct_value () [symbolic]
+// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T.8b3 [symbolic]
+// CHECK:STDOUT:   %impl_witness.3ea: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(type) [concrete]
+// CHECK:STDOUT:   %impl_witness.b81: <witness> = impl_witness (imports.%Core.import_ref.bd4), @impl(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %Op.type.eb8: type = fn_type @Op.1, @impl(type) [concrete]
+// CHECK:STDOUT:   %Op.444: %Op.type.eb8 = struct_value () [concrete]
+// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness type [concrete]
+// CHECK:STDOUT:   %Op.type.27a: type = fn_type @Op.2 [concrete]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.25f [symbolic]
+// CHECK:STDOUT:   %BitAnd.facet: %BitAnd.type = facet_value type, %impl_witness.3ea [concrete]
+// CHECK:STDOUT:   %.d4d: type = fn_type_with_self_type %Op.type.27a, %BitAnd.facet [concrete]
+// CHECK:STDOUT:   %Op.bound: <bound method> = bound_method %Animal.type, %Op.444 [concrete]
+// CHECK:STDOUT:   %Op.specific_fn: <specific function> = specific_function %Op.bound, @Op.1(type) [concrete]
+// CHECK:STDOUT:   %facet_type: type = facet_type <@Eats & @Animal> [concrete]
+// CHECK:STDOUT:   %U: %facet_type = bind_symbolic_name U, 0 [symbolic]
+// CHECK:STDOUT:   %U.patt: %facet_type = symbolic_binding_pattern U, 0 [symbolic]
+// CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
+// CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
+// CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
+// CHECK:STDOUT:   %require_complete.680: <witness> = require_complete_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %U.as_wit: <witness> = facet_access_witness %U [symbolic]
+// CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %U.as_type, %U.as_wit [symbolic]
+// CHECK:STDOUT:   %Feed.specific_fn: <specific function> = specific_function %Feed, @Feed(%Eats.facet) [symbolic]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: imports {
+// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
+// CHECK:STDOUT:     .BitAnd = %Core.BitAnd
+// CHECK:STDOUT:     import Core//default
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %Core.import_ref.ad0 = import_ref Core//default, inst59 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.08d: %BitAnd.assoc_type = import_ref Core//default, loc8_41, loaded [concrete = constants.%assoc0]
+// CHECK:STDOUT:   %Core.Op = import_ref Core//default, Op, unloaded
+// CHECK:STDOUT:   %Core.import_ref.51c: <witness> = import_ref Core//default, loc11_36, loaded [symbolic = @impl.%impl_witness (constants.%impl_witness.b81)]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc11_14, loaded [symbolic = @impl.%T (constants.%T.8b3)]
+// CHECK:STDOUT:   %Core.import_ref.583: type = import_ref Core//default, loc11_24, loaded [symbolic = @impl.%T (constants.%T.8b3)]
+// CHECK:STDOUT:   %Core.import_ref.9c1: type = import_ref Core//default, loc11_29, loaded [concrete = constants.%BitAnd.type]
+// CHECK:STDOUT:   %Core.import_ref.1e6: @impl.%Op.type (%Op.type.f99) = import_ref Core//default, loc12_42, loaded [symbolic = @impl.%Op (constants.%Op.05a)]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc11_14, loaded [symbolic = @impl.%T (constants.%T.8b3)]
+// CHECK:STDOUT:   %Core.import_ref.040: %BitAnd.type = import_ref Core//default, inst59 [no loc], loaded [symbolic = constants.%Self.25f]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: file {
+// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
+// CHECK:STDOUT:     .Core = imports.%Core
+// CHECK:STDOUT:     .Eats = %Eats.decl
+// CHECK:STDOUT:     .Animal = %Animal.decl
+// CHECK:STDOUT:     .Feed = %Feed.decl
+// CHECK:STDOUT:     .HandleAnimal = %HandleAnimal.decl
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %Core.import = import Core
+// CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
+// CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
+// CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
+// CHECK:STDOUT:     %T.patt.loc8_9.1: %Eats.type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc8_9.2 (constants.%T.patt.6be)]
+// CHECK:STDOUT:     %e.patt: @Feed.%T.as_type.loc8_22.2 (%T.as_type) = binding_pattern e
+// CHECK:STDOUT:     %e.param_patt: @Feed.%T.as_type.loc8_22.2 (%T.as_type) = value_param_pattern %e.patt, call_param0
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
+// CHECK:STDOUT:     %T.loc8_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_9.2 (constants.%T.1b5)]
+// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc8_22.2 (%T.as_type) = value_param call_param0
+// CHECK:STDOUT:     %.loc8_22.1: type = splice_block %.loc8_22.2 [symbolic = %T.as_type.loc8_22.2 (constants.%T.as_type)] {
+// CHECK:STDOUT:       %T.ref: %Eats.type = name_ref T, %T.loc8_9.1 [symbolic = %T.loc8_9.2 (constants.%T.1b5)]
+// CHECK:STDOUT:       %T.as_type.loc8_22.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc8_22.2 (constants.%T.as_type)]
+// CHECK:STDOUT:       %.loc8_22.2: type = converted %T.ref, %T.as_type.loc8_22.1 [symbolic = %T.as_type.loc8_22.2 (constants.%T.as_type)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc8_22.2 (%T.as_type) = bind_name e, %e.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
+// CHECK:STDOUT:     %U.patt.loc10_17.1: %facet_type = symbolic_binding_pattern U, 0 [symbolic = %U.patt.loc10_17.2 (constants.%U.patt)]
+// CHECK:STDOUT:     %a.patt: @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type) = binding_pattern a
+// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type) = value_param_pattern %a.patt, call_param0
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %.loc10_28.1: type = splice_block %.loc10_28.3 [concrete = constants.%facet_type] {
+// CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
+// CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
+// CHECK:STDOUT:       %impl.elem0: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Animal.ref, %impl.elem0 [concrete = constants.%Op.bound]
+// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %bound_method, @Op.1(type) [concrete = constants.%Op.specific_fn]
+// CHECK:STDOUT:       %type.and: init type = call %specific_fn(%Animal.ref, %Eats.ref) [concrete = constants.%facet_type]
+// CHECK:STDOUT:       %.loc10_28.2: type = value_of_initializer %type.and [concrete = constants.%facet_type]
+// CHECK:STDOUT:       %.loc10_28.3: type = converted %type.and, %.loc10_28.2 [concrete = constants.%facet_type]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %U.loc10_17.1: %facet_type = bind_symbolic_name U, 0 [symbolic = %U.loc10_17.2 (constants.%U)]
+// CHECK:STDOUT:     %a.param: @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type) = value_param call_param0
+// CHECK:STDOUT:     %.loc10_39.1: type = splice_block %.loc10_39.2 [symbolic = %U.as_type.loc10_39.2 (constants.%U.as_type)] {
+// CHECK:STDOUT:       %U.ref: %facet_type = name_ref U, %U.loc10_17.1 [symbolic = %U.loc10_17.2 (constants.%U)]
+// CHECK:STDOUT:       %U.as_type.loc10_39.1: type = facet_access_type %U.ref [symbolic = %U.as_type.loc10_39.2 (constants.%U.as_type)]
+// CHECK:STDOUT:       %.loc10_39.2: type = converted %U.ref, %U.as_type.loc10_39.1 [symbolic = %U.as_type.loc10_39.2 (constants.%U.as_type)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %a: @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type) = bind_name a, %a.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Eats {
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Animal {
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @BitAnd [from "core.carbon"] {
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = imports.%Core.import_ref.ad0
+// CHECK:STDOUT:   .Op = imports.%Core.import_ref.08d
+// CHECK:STDOUT:   witness = (imports.%Core.Op)
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic impl @impl(imports.%Core.import_ref.5ab3ec.1: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt.e01)]
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(%T) [symbolic = %impl_witness (constants.%impl_witness.db8)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type: type = fn_type @Op.1, @impl(%T) [symbolic = %Op.type (constants.%Op.type.f99)]
+// CHECK:STDOUT:   %Op: @impl.%Op.type (%Op.type.f99) = struct_value () [symbolic = %Op (constants.%Op.05a)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @impl.%T (%T.8b3) [symbolic = %require_complete (constants.%require_complete.4ae)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   impl: imports.%Core.import_ref.583 as imports.%Core.import_ref.9c1 {
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     witness = imports.%Core.import_ref.51c
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Feed(%T.loc8_9.1: %Eats.type) {
+// CHECK:STDOUT:   %T.loc8_9.2: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_9.2 (constants.%T.1b5)]
+// CHECK:STDOUT:   %T.patt.loc8_9.2: %Eats.type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc8_9.2 (constants.%T.patt.6be)]
+// CHECK:STDOUT:   %T.as_type.loc8_22.2: type = facet_access_type %T.loc8_9.2 [symbolic = %T.as_type.loc8_22.2 (constants.%T.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @Feed.%T.as_type.loc8_22.2 (%T.as_type) [symbolic = %require_complete (constants.%require_complete.c75)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%T.patt.loc8_9.1: %Eats.type](%e.param_patt: @Feed.%T.as_type.loc8_22.2 (%T.as_type)) {
+// CHECK:STDOUT:   !entry:
+// CHECK:STDOUT:     return
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.1(imports.%Core.import_ref.5ab3ec.2: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.1.%T (%T.8b3)](%other.param_patt: @Op.1.%T (%T.8b3)) -> @Op.1.%T (%T.8b3) = "type.and";
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.2(imports.%Core.import_ref.040: %BitAnd.type) [from "core.carbon"] {
+// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.25f)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.2.%Self.as_type (%Self.as_type)](%other.param_patt: @Op.2.%Self.as_type (%Self.as_type)) -> @Op.2.%Self.as_type (%Self.as_type);
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @HandleAnimal(%U.loc10_17.1: %facet_type) {
+// CHECK:STDOUT:   %U.loc10_17.2: %facet_type = bind_symbolic_name U, 0 [symbolic = %U.loc10_17.2 (constants.%U)]
+// CHECK:STDOUT:   %U.patt.loc10_17.2: %facet_type = symbolic_binding_pattern U, 0 [symbolic = %U.patt.loc10_17.2 (constants.%U.patt)]
+// CHECK:STDOUT:   %U.as_type.loc10_39.2: type = facet_access_type %U.loc10_17.2 [symbolic = %U.as_type.loc10_39.2 (constants.%U.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type) [symbolic = %require_complete (constants.%require_complete.680)]
+// CHECK:STDOUT:   %U.as_wit.loc10_50.3: <witness> = facet_access_witness %U.loc10_17.2 [symbolic = %U.as_wit.loc10_50.3 (constants.%U.as_wit)]
+// CHECK:STDOUT:   %Eats.facet.loc10_50.3: %Eats.type = facet_value %U.as_type.loc10_39.2, %U.as_wit.loc10_50.3 [symbolic = %Eats.facet.loc10_50.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:   %Feed.specific_fn.loc10_44.2: <specific function> = specific_function constants.%Feed, @Feed(%Eats.facet.loc10_50.3) [symbolic = %Feed.specific_fn.loc10_44.2 (constants.%Feed.specific_fn)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%U.patt.loc10_17.1: %facet_type](%a.param_patt: @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type)) {
+// CHECK:STDOUT:   !entry:
+// CHECK:STDOUT:     %Feed.ref: %Feed.type = name_ref Feed, file.%Feed.decl [concrete = constants.%Feed]
+// CHECK:STDOUT:     %a.ref: @HandleAnimal.%U.as_type.loc10_39.2 (%U.as_type) = name_ref a, %a
+// CHECK:STDOUT:     %U.as_wit.loc10_50.1: <witness> = facet_access_witness constants.%U [symbolic = %U.as_wit.loc10_50.3 (constants.%U.as_wit)]
+// CHECK:STDOUT:     %Eats.facet.loc10_50.1: %Eats.type = facet_value constants.%U.as_type, %U.as_wit.loc10_50.1 [symbolic = %Eats.facet.loc10_50.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %.loc10_50.1: %Eats.type = converted constants.%U.as_type, %Eats.facet.loc10_50.1 [symbolic = %Eats.facet.loc10_50.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %U.as_wit.loc10_50.2: <witness> = facet_access_witness constants.%U [symbolic = %U.as_wit.loc10_50.3 (constants.%U.as_wit)]
+// CHECK:STDOUT:     %Eats.facet.loc10_50.2: %Eats.type = facet_value constants.%U.as_type, %U.as_wit.loc10_50.2 [symbolic = %Eats.facet.loc10_50.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %.loc10_50.2: %Eats.type = converted constants.%U.as_type, %Eats.facet.loc10_50.2 [symbolic = %Eats.facet.loc10_50.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %Feed.specific_fn.loc10_44.1: <specific function> = specific_function %Feed.ref, @Feed(constants.%Eats.facet) [symbolic = %Feed.specific_fn.loc10_44.2 (constants.%Feed.specific_fn)]
+// CHECK:STDOUT:     %Feed.call: init %empty_tuple.type = call %Feed.specific_fn.loc10_44.1(%a.ref)
+// CHECK:STDOUT:     return
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Feed(constants.%T.1b5) {
+// CHECK:STDOUT:   %T.loc8_9.2 => constants.%T.1b5
+// CHECK:STDOUT:   %T.patt.loc8_9.2 => constants.%T.1b5
+// CHECK:STDOUT:   %T.as_type.loc8_22.2 => constants.%T.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(constants.%T.8b3) {
+// CHECK:STDOUT:   %T => constants.%T.8b3
+// CHECK:STDOUT:   %T.patt => constants.%T.8b3
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.db8
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(%T) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(constants.%T.8b3) {
+// CHECK:STDOUT:   %T => constants.%T.8b3
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(type) {
+// CHECK:STDOUT:   %T => type
+// CHECK:STDOUT:   %T.patt => type
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.3ea
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type => constants.%Op.type.eb8
+// CHECK:STDOUT:   %Op => constants.%Op.444
+// CHECK:STDOUT:   %require_complete => constants.%complete_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.2(constants.%Self.25f) {
+// CHECK:STDOUT:   %Self => constants.%Self.25f
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(type) {
+// CHECK:STDOUT:   %T => type
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @HandleAnimal(constants.%U) {
+// CHECK:STDOUT:   %U.loc10_17.2 => constants.%U
+// CHECK:STDOUT:   %U.patt.loc10_17.2 => constants.%U
+// CHECK:STDOUT:   %U.as_type.loc10_39.2 => constants.%U.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Feed(constants.%Eats.facet) {
+// CHECK:STDOUT:   %T.loc8_9.2 => constants.%Eats.facet
+// CHECK:STDOUT:   %T.patt.loc8_9.2 => constants.%Eats.facet
+// CHECK:STDOUT:   %T.as_type.loc8_22.2 => constants.%U.as_type
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.680
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Feed(@HandleAnimal.%Eats.facet.loc10_50.3) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: --- bigger.carbon
+// CHECK:STDOUT:
+// CHECK:STDOUT: constants {
+// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
+// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
+// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Tame.type: type = facet_type <@Tame> [concrete]
+// CHECK:STDOUT:   %Self.7ee: %Tame.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %BitAnd.type: type = facet_type <@BitAnd> [concrete]
+// CHECK:STDOUT:   %Self.25f: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
+// CHECK:STDOUT:   %BitAnd.assoc_type: type = assoc_entity_type %BitAnd.type [concrete]
+// CHECK:STDOUT:   %assoc0: %BitAnd.assoc_type = assoc_entity element0, imports.%Core.import_ref.a93 [concrete]
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
+// CHECK:STDOUT:   %impl_witness.db8: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(%T) [symbolic]
+// CHECK:STDOUT:   %Op.type.f99: type = fn_type @Op.1, @impl(%T) [symbolic]
+// CHECK:STDOUT:   %Op.05a: %Op.type.f99 = struct_value () [symbolic]
+// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
+// CHECK:STDOUT:   %impl_witness.3ea: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(type) [concrete]
+// CHECK:STDOUT:   %impl_witness.b81: <witness> = impl_witness (imports.%Core.import_ref.bd4), @impl(%T) [symbolic]
+// CHECK:STDOUT:   %Op.type.eb8: type = fn_type @Op.1, @impl(type) [concrete]
+// CHECK:STDOUT:   %Op.444: %Op.type.eb8 = struct_value () [concrete]
+// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness type [concrete]
+// CHECK:STDOUT:   %Op.type.27a: type = fn_type @Op.2 [concrete]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.25f [symbolic]
+// CHECK:STDOUT:   %BitAnd.facet: %BitAnd.type = facet_value type, %impl_witness.3ea [concrete]
+// CHECK:STDOUT:   %.d4d: type = fn_type_with_self_type %Op.type.27a, %BitAnd.facet [concrete]
+// CHECK:STDOUT:   %Op.bound.9f8: <bound method> = bound_method %Tame.type, %Op.444 [concrete]
+// CHECK:STDOUT:   %Op.specific_fn.163: <specific function> = specific_function %Op.bound.9f8, @Op.1(type) [concrete]
+// CHECK:STDOUT:   %facet_type.6ff: type = facet_type <@Eats & @Tame> [concrete]
+// CHECK:STDOUT:   %V: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic]
+// CHECK:STDOUT:   %V.patt: %facet_type.6ff = symbolic_binding_pattern V, 0 [symbolic]
+// CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
+// CHECK:STDOUT:   %FeedTame.type: type = fn_type @FeedTame [concrete]
+// CHECK:STDOUT:   %FeedTame: %FeedTame.type = struct_value () [concrete]
+// CHECK:STDOUT:   %require_complete.940: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %Op.bound.d46: <bound method> = bound_method %Eats.type, %Op.444 [concrete]
+// CHECK:STDOUT:   %Op.specific_fn.8e0: <specific function> = specific_function %Op.bound.d46, @Op.1(type) [concrete]
+// CHECK:STDOUT:   %facet_type.c3f: type = facet_type <@Eats & @Animal> [concrete]
+// CHECK:STDOUT:   %Op.bound.c0a: <bound method> = bound_method %facet_type.c3f, %Op.444 [concrete]
+// CHECK:STDOUT:   %Op.specific_fn.394: <specific function> = specific_function %Op.bound.c0a, @Op.1(type) [concrete]
+// CHECK:STDOUT:   %facet_type.a95: type = facet_type <@Eats & @Animal & @Tame> [concrete]
+// CHECK:STDOUT:   %W: %facet_type.a95 = bind_symbolic_name W, 0 [symbolic]
+// CHECK:STDOUT:   %W.patt: %facet_type.a95 = symbolic_binding_pattern W, 0 [symbolic]
+// CHECK:STDOUT:   %W.as_type: type = facet_access_type %W [symbolic]
+// CHECK:STDOUT:   %HandleTameAnimal.type: type = fn_type @HandleTameAnimal [concrete]
+// CHECK:STDOUT:   %HandleTameAnimal: %HandleTameAnimal.type = struct_value () [concrete]
+// CHECK:STDOUT:   %require_complete.40f: <witness> = require_complete_type %W.as_type [symbolic]
+// CHECK:STDOUT:   %W.as_wit: <witness> = facet_access_witness %W [symbolic]
+// CHECK:STDOUT:   %facet_value: %facet_type.6ff = facet_value %W.as_type, %W.as_wit [symbolic]
+// CHECK:STDOUT:   %FeedTame.specific_fn: <specific function> = specific_function %FeedTame, @FeedTame(%facet_value) [symbolic]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: imports {
+// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
+// CHECK:STDOUT:     .BitAnd = %Core.BitAnd
+// CHECK:STDOUT:     import Core//default
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %Core.import_ref.ad0 = import_ref Core//default, inst59 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.08d: %BitAnd.assoc_type = import_ref Core//default, loc8_41, loaded [concrete = constants.%assoc0]
+// CHECK:STDOUT:   %Core.Op = import_ref Core//default, Op, unloaded
+// CHECK:STDOUT:   %Core.import_ref.51c: <witness> = import_ref Core//default, loc11_36, loaded [symbolic = @impl.%impl_witness (constants.%impl_witness.b81)]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc11_14, loaded [symbolic = @impl.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.583: type = import_ref Core//default, loc11_24, loaded [symbolic = @impl.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.9c1: type = import_ref Core//default, loc11_29, loaded [concrete = constants.%BitAnd.type]
+// CHECK:STDOUT:   %Core.import_ref.1e6: @impl.%Op.type (%Op.type.f99) = import_ref Core//default, loc12_42, loaded [symbolic = @impl.%Op (constants.%Op.05a)]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc11_14, loaded [symbolic = @impl.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.040: %BitAnd.type = import_ref Core//default, inst59 [no loc], loaded [symbolic = constants.%Self.25f]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: file {
+// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
+// CHECK:STDOUT:     .Core = imports.%Core
+// CHECK:STDOUT:     .Eats = %Eats.decl
+// CHECK:STDOUT:     .Animal = %Animal.decl
+// CHECK:STDOUT:     .Tame = %Tame.decl
+// CHECK:STDOUT:     .FeedTame = %FeedTame.decl
+// CHECK:STDOUT:     .HandleTameAnimal = %HandleTameAnimal.decl
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %Core.import = import Core
+// CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
+// CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
+// CHECK:STDOUT:   %Tame.decl: type = interface_decl @Tame [concrete = constants.%Tame.type] {} {}
+// CHECK:STDOUT:   %FeedTame.decl: %FeedTame.type = fn_decl @FeedTame [concrete = constants.%FeedTame] {
+// CHECK:STDOUT:     %V.patt.loc9_13.1: %facet_type.6ff = symbolic_binding_pattern V, 0 [symbolic = %V.patt.loc9_13.2 (constants.%V.patt)]
+// CHECK:STDOUT:     %v.patt: @FeedTame.%V.as_type.loc9_33.2 (%V.as_type) = binding_pattern v
+// CHECK:STDOUT:     %v.param_patt: @FeedTame.%V.as_type.loc9_33.2 (%V.as_type) = value_param_pattern %v.patt, call_param0
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %.loc9_22.1: type = splice_block %.loc9_22.3 [concrete = constants.%facet_type.6ff] {
+// CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
+// CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
+// CHECK:STDOUT:       %impl.elem0: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Tame.ref, %impl.elem0 [concrete = constants.%Op.bound.9f8]
+// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %bound_method, @Op.1(type) [concrete = constants.%Op.specific_fn.163]
+// CHECK:STDOUT:       %type.and: init type = call %specific_fn(%Tame.ref, %Eats.ref) [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:       %.loc9_22.2: type = value_of_initializer %type.and [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:       %.loc9_22.3: type = converted %type.and, %.loc9_22.2 [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %V.loc9_13.1: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc9_13.2 (constants.%V)]
+// CHECK:STDOUT:     %v.param: @FeedTame.%V.as_type.loc9_33.2 (%V.as_type) = value_param call_param0
+// CHECK:STDOUT:     %.loc9_33.1: type = splice_block %.loc9_33.2 [symbolic = %V.as_type.loc9_33.2 (constants.%V.as_type)] {
+// CHECK:STDOUT:       %V.ref: %facet_type.6ff = name_ref V, %V.loc9_13.1 [symbolic = %V.loc9_13.2 (constants.%V)]
+// CHECK:STDOUT:       %V.as_type.loc9_33.1: type = facet_access_type %V.ref [symbolic = %V.as_type.loc9_33.2 (constants.%V.as_type)]
+// CHECK:STDOUT:       %.loc9_33.2: type = converted %V.ref, %V.as_type.loc9_33.1 [symbolic = %V.as_type.loc9_33.2 (constants.%V.as_type)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %v: @FeedTame.%V.as_type.loc9_33.2 (%V.as_type) = bind_name v, %v.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %HandleTameAnimal.decl: %HandleTameAnimal.type = fn_decl @HandleTameAnimal [concrete = constants.%HandleTameAnimal] {
+// CHECK:STDOUT:     %W.patt.loc11_21.1: %facet_type.a95 = symbolic_binding_pattern W, 0 [symbolic = %W.patt.loc11_21.2 (constants.%W.patt)]
+// CHECK:STDOUT:     %w.patt: @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type) = binding_pattern w
+// CHECK:STDOUT:     %w.param_patt: @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type) = value_param_pattern %w.patt, call_param0
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %.loc11_39.1: type = splice_block %.loc11_39.3 [concrete = constants.%facet_type.a95] {
+// CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
+// CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
+// CHECK:STDOUT:       %impl.elem0.loc11_30: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
+// CHECK:STDOUT:       %bound_method.loc11_30: <bound method> = bound_method %Eats.ref, %impl.elem0.loc11_30 [concrete = constants.%Op.bound.d46]
+// CHECK:STDOUT:       %specific_fn.loc11_30: <specific function> = specific_function %bound_method.loc11_30, @Op.1(type) [concrete = constants.%Op.specific_fn.8e0]
+// CHECK:STDOUT:       %type.and.loc11_30: init type = call %specific_fn.loc11_30(%Eats.ref, %Animal.ref) [concrete = constants.%facet_type.c3f]
+// CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
+// CHECK:STDOUT:       %impl.elem0.loc11_39: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
+// CHECK:STDOUT:       %bound_method.loc11_39: <bound method> = bound_method %type.and.loc11_30, %impl.elem0.loc11_39 [concrete = constants.%Op.bound.c0a]
+// CHECK:STDOUT:       %specific_fn.loc11_39: <specific function> = specific_function %bound_method.loc11_39, @Op.1(type) [concrete = constants.%Op.specific_fn.394]
+// CHECK:STDOUT:       %.loc11_30.1: type = value_of_initializer %type.and.loc11_30 [concrete = constants.%facet_type.c3f]
+// CHECK:STDOUT:       %.loc11_30.2: type = converted %type.and.loc11_30, %.loc11_30.1 [concrete = constants.%facet_type.c3f]
+// CHECK:STDOUT:       %type.and.loc11_39: init type = call %specific_fn.loc11_39(%.loc11_30.2, %Tame.ref) [concrete = constants.%facet_type.a95]
+// CHECK:STDOUT:       %.loc11_39.2: type = value_of_initializer %type.and.loc11_39 [concrete = constants.%facet_type.a95]
+// CHECK:STDOUT:       %.loc11_39.3: type = converted %type.and.loc11_39, %.loc11_39.2 [concrete = constants.%facet_type.a95]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %W.loc11_21.1: %facet_type.a95 = bind_symbolic_name W, 0 [symbolic = %W.loc11_21.2 (constants.%W)]
+// CHECK:STDOUT:     %w.param: @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type) = value_param call_param0
+// CHECK:STDOUT:     %.loc11_50.1: type = splice_block %.loc11_50.2 [symbolic = %W.as_type.loc11_50.2 (constants.%W.as_type)] {
+// CHECK:STDOUT:       %W.ref: %facet_type.a95 = name_ref W, %W.loc11_21.1 [symbolic = %W.loc11_21.2 (constants.%W)]
+// CHECK:STDOUT:       %W.as_type.loc11_50.1: type = facet_access_type %W.ref [symbolic = %W.as_type.loc11_50.2 (constants.%W.as_type)]
+// CHECK:STDOUT:       %.loc11_50.2: type = converted %W.ref, %W.as_type.loc11_50.1 [symbolic = %W.as_type.loc11_50.2 (constants.%W.as_type)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %w: @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type) = bind_name w, %w.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Eats {
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Animal {
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Tame {
+// CHECK:STDOUT:   %Self: %Tame.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.7ee]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @BitAnd [from "core.carbon"] {
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = imports.%Core.import_ref.ad0
+// CHECK:STDOUT:   .Op = imports.%Core.import_ref.08d
+// CHECK:STDOUT:   witness = (imports.%Core.Op)
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic impl @impl(imports.%Core.import_ref.5ab3ec.1: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt)]
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(%T) [symbolic = %impl_witness (constants.%impl_witness.db8)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type: type = fn_type @Op.1, @impl(%T) [symbolic = %Op.type (constants.%Op.type.f99)]
+// CHECK:STDOUT:   %Op: @impl.%Op.type (%Op.type.f99) = struct_value () [symbolic = %Op (constants.%Op.05a)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @impl.%T (%T) [symbolic = %require_complete (constants.%require_complete.4ae)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   impl: imports.%Core.import_ref.583 as imports.%Core.import_ref.9c1 {
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     witness = imports.%Core.import_ref.51c
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.1(imports.%Core.import_ref.5ab3ec.2: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.1.%T (%T)](%other.param_patt: @Op.1.%T (%T)) -> @Op.1.%T (%T) = "type.and";
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.2(imports.%Core.import_ref.040: %BitAnd.type) [from "core.carbon"] {
+// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.25f)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.2.%Self.as_type (%Self.as_type)](%other.param_patt: @Op.2.%Self.as_type (%Self.as_type)) -> @Op.2.%Self.as_type (%Self.as_type);
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @FeedTame(%V.loc9_13.1: %facet_type.6ff) {
+// CHECK:STDOUT:   %V.loc9_13.2: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc9_13.2 (constants.%V)]
+// CHECK:STDOUT:   %V.patt.loc9_13.2: %facet_type.6ff = symbolic_binding_pattern V, 0 [symbolic = %V.patt.loc9_13.2 (constants.%V.patt)]
+// CHECK:STDOUT:   %V.as_type.loc9_33.2: type = facet_access_type %V.loc9_13.2 [symbolic = %V.as_type.loc9_33.2 (constants.%V.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @FeedTame.%V.as_type.loc9_33.2 (%V.as_type) [symbolic = %require_complete (constants.%require_complete.940)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%V.patt.loc9_13.1: %facet_type.6ff](%v.param_patt: @FeedTame.%V.as_type.loc9_33.2 (%V.as_type)) {
+// CHECK:STDOUT:   !entry:
+// CHECK:STDOUT:     return
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @HandleTameAnimal(%W.loc11_21.1: %facet_type.a95) {
+// CHECK:STDOUT:   %W.loc11_21.2: %facet_type.a95 = bind_symbolic_name W, 0 [symbolic = %W.loc11_21.2 (constants.%W)]
+// CHECK:STDOUT:   %W.patt.loc11_21.2: %facet_type.a95 = symbolic_binding_pattern W, 0 [symbolic = %W.patt.loc11_21.2 (constants.%W.patt)]
+// CHECK:STDOUT:   %W.as_type.loc11_50.2: type = facet_access_type %W.loc11_21.2 [symbolic = %W.as_type.loc11_50.2 (constants.%W.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type) [symbolic = %require_complete (constants.%require_complete.40f)]
+// CHECK:STDOUT:   %W.as_wit.loc12_13.5: <witness> = facet_access_witness %W.loc11_21.2 [symbolic = %W.as_wit.loc12_13.5 (constants.%W.as_wit)]
+// CHECK:STDOUT:   %facet_value.loc12_13.3: %facet_type.6ff = facet_value %W.as_type.loc11_50.2, %W.as_wit.loc12_13.5 [symbolic = %facet_value.loc12_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:   %FeedTame.specific_fn.loc12_3.2: <specific function> = specific_function constants.%FeedTame, @FeedTame(%facet_value.loc12_13.3) [symbolic = %FeedTame.specific_fn.loc12_3.2 (constants.%FeedTame.specific_fn)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%W.patt.loc11_21.1: %facet_type.a95](%w.param_patt: @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type)) {
+// CHECK:STDOUT:   !entry:
+// CHECK:STDOUT:     %FeedTame.ref: %FeedTame.type = name_ref FeedTame, file.%FeedTame.decl [concrete = constants.%FeedTame]
+// CHECK:STDOUT:     %w.ref: @HandleTameAnimal.%W.as_type.loc11_50.2 (%W.as_type) = name_ref w, %w
+// CHECK:STDOUT:     %W.as_wit.loc12_13.1: <witness> = facet_access_witness constants.%W [symbolic = %W.as_wit.loc12_13.5 (constants.%W.as_wit)]
+// CHECK:STDOUT:     %W.as_wit.loc12_13.2: <witness> = facet_access_witness constants.%W [symbolic = %W.as_wit.loc12_13.5 (constants.%W.as_wit)]
+// CHECK:STDOUT:     %facet_value.loc12_13.1: %facet_type.6ff = facet_value constants.%W.as_type, %W.as_wit.loc12_13.1 [symbolic = %facet_value.loc12_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %.loc12_13.1: %facet_type.6ff = converted constants.%W.as_type, %facet_value.loc12_13.1 [symbolic = %facet_value.loc12_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %W.as_wit.loc12_13.3: <witness> = facet_access_witness constants.%W [symbolic = %W.as_wit.loc12_13.5 (constants.%W.as_wit)]
+// CHECK:STDOUT:     %W.as_wit.loc12_13.4: <witness> = facet_access_witness constants.%W [symbolic = %W.as_wit.loc12_13.5 (constants.%W.as_wit)]
+// CHECK:STDOUT:     %facet_value.loc12_13.2: %facet_type.6ff = facet_value constants.%W.as_type, %W.as_wit.loc12_13.3 [symbolic = %facet_value.loc12_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %.loc12_13.2: %facet_type.6ff = converted constants.%W.as_type, %facet_value.loc12_13.2 [symbolic = %facet_value.loc12_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %FeedTame.specific_fn.loc12_3.1: <specific function> = specific_function %FeedTame.ref, @FeedTame(constants.%facet_value) [symbolic = %FeedTame.specific_fn.loc12_3.2 (constants.%FeedTame.specific_fn)]
+// CHECK:STDOUT:     %FeedTame.call: init %empty_tuple.type = call %FeedTame.specific_fn.loc12_3.1(%w.ref)
+// CHECK:STDOUT:     return
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(constants.%T) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT:   %T.patt => constants.%T
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.db8
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(%T) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(constants.%T) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl(type) {
+// CHECK:STDOUT:   %T => type
+// CHECK:STDOUT:   %T.patt => type
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.3ea
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type => constants.%Op.type.eb8
+// CHECK:STDOUT:   %Op => constants.%Op.444
+// CHECK:STDOUT:   %require_complete => constants.%complete_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.2(constants.%Self.25f) {
+// CHECK:STDOUT:   %Self => constants.%Self.25f
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(type) {
+// CHECK:STDOUT:   %T => type
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @FeedTame(constants.%V) {
+// CHECK:STDOUT:   %V.loc9_13.2 => constants.%V
+// CHECK:STDOUT:   %V.patt.loc9_13.2 => constants.%V
+// CHECK:STDOUT:   %V.as_type.loc9_33.2 => constants.%V.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @HandleTameAnimal(constants.%W) {
+// CHECK:STDOUT:   %W.loc11_21.2 => constants.%W
+// CHECK:STDOUT:   %W.patt.loc11_21.2 => constants.%W
+// CHECK:STDOUT:   %W.as_type.loc11_50.2 => constants.%W.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @FeedTame(constants.%facet_value) {
+// CHECK:STDOUT:   %V.loc9_13.2 => constants.%facet_value
+// CHECK:STDOUT:   %V.patt.loc9_13.2 => constants.%facet_value
+// CHECK:STDOUT:   %V.as_type.loc9_33.2 => constants.%W.as_type
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.40f
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @FeedTame(@HandleTameAnimal.%facet_value.loc12_13.3) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: --- fail_todo_with_blanket.carbon
+// CHECK:STDOUT:
+// CHECK:STDOUT: constants {
+// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
+// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
+// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Tame.type: type = facet_type <@Tame> [concrete]
+// CHECK:STDOUT:   %Self.7ee: %Tame.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %A: %Animal.type = bind_symbolic_name A, 0 [symbolic]
+// CHECK:STDOUT:   %A.patt: %Animal.type = symbolic_binding_pattern A, 0 [symbolic]
+// CHECK:STDOUT:   %A.as_type: type = facet_access_type %A [symbolic]
+// CHECK:STDOUT:   %impl_witness.110: <witness> = impl_witness (), @impl.e7b(%A) [symbolic]
+// CHECK:STDOUT:   %BitAnd.type: type = facet_type <@BitAnd> [concrete]
+// CHECK:STDOUT:   %Self.25f: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %BitAnd.assoc_type: type = assoc_entity_type %BitAnd.type [concrete]
+// CHECK:STDOUT:   %assoc0.a63: %BitAnd.assoc_type = assoc_entity element0, imports.%Core.import_ref.a93 [concrete]
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
+// CHECK:STDOUT:   %impl_witness.db8: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl.f92(%T) [symbolic]
+// CHECK:STDOUT:   %Op.type.f99: type = fn_type @Op.1, @impl.f92(%T) [symbolic]
+// CHECK:STDOUT:   %Op.05a: %Op.type.f99 = struct_value () [symbolic]
+// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
+// CHECK:STDOUT:   %impl_witness.3ea: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl.f92(type) [concrete]
+// CHECK:STDOUT:   %impl_witness.b81: <witness> = impl_witness (imports.%Core.import_ref.bd4), @impl.f92(%T) [symbolic]
+// CHECK:STDOUT:   %Op.type.eb8: type = fn_type @Op.1, @impl.f92(type) [concrete]
+// CHECK:STDOUT:   %Op.444: %Op.type.eb8 = struct_value () [concrete]
+// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness type [concrete]
+// CHECK:STDOUT:   %Op.type.27a: type = fn_type @Op.2 [concrete]
+// CHECK:STDOUT:   %Self.as_type.19f: type = facet_access_type %Self.25f [symbolic]
+// CHECK:STDOUT:   %BitAnd.facet: %BitAnd.type = facet_value type, %impl_witness.3ea [concrete]
+// CHECK:STDOUT:   %.d4d: type = fn_type_with_self_type %Op.type.27a, %BitAnd.facet [concrete]
+// CHECK:STDOUT:   %Op.bound.9f8: <bound method> = bound_method %Tame.type, %Op.444 [concrete]
+// CHECK:STDOUT:   %Op.specific_fn.163: <specific function> = specific_function %Op.bound.9f8, @Op.1(type) [concrete]
+// CHECK:STDOUT:   %facet_type.6ff: type = facet_type <@Eats & @Tame> [concrete]
+// CHECK:STDOUT:   %V: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic]
+// CHECK:STDOUT:   %V.patt: %facet_type.6ff = symbolic_binding_pattern V, 0 [symbolic]
+// CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
+// CHECK:STDOUT:   %FeedTame2.type: type = fn_type @FeedTame2 [concrete]
+// CHECK:STDOUT:   %FeedTame2: %FeedTame2.type = struct_value () [concrete]
+// CHECK:STDOUT:   %require_complete.940: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %Op.bound.fe3: <bound method> = bound_method %Animal.type, %Op.444 [concrete]
+// CHECK:STDOUT:   %Op.specific_fn.1fd: <specific function> = specific_function %Op.bound.fe3, @Op.1(type) [concrete]
+// CHECK:STDOUT:   %facet_type.65c: type = facet_type <@Animal & @Tame> [concrete]
+// CHECK:STDOUT:   %W: %facet_type.65c = bind_symbolic_name W, 0 [symbolic]
+// CHECK:STDOUT:   %W.patt: %facet_type.65c = symbolic_binding_pattern W, 0 [symbolic]
+// CHECK:STDOUT:   %W.as_type: type = facet_access_type %W [symbolic]
+// CHECK:STDOUT:   %HandleTameAnimal2.type: type = fn_type @HandleTameAnimal2 [concrete]
+// CHECK:STDOUT:   %HandleTameAnimal2: %HandleTameAnimal2.type = struct_value () [concrete]
+// CHECK:STDOUT:   %require_complete.ba9: <witness> = require_complete_type %W.as_type [symbolic]
+// CHECK:STDOUT:   %W.as_wit: <witness> = facet_access_witness %W [symbolic]
+// CHECK:STDOUT:   %Animal.facet: %Animal.type = facet_value %W.as_type, %W.as_wit [symbolic]
+// CHECK:STDOUT:   %impl_witness.c31: <witness> = impl_witness (), @impl.e7b(%Animal.facet) [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.d62: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.519: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Convert.type.275: type = fn_type @Convert, @ImplicitAs(%T) [symbolic]
+// CHECK:STDOUT:   %Convert.42e: %Convert.type.275 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Self.as_type.40a: type = facet_access_type %Self.519 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type.837: type = assoc_entity_type %ImplicitAs.type.d62 [symbolic]
+// CHECK:STDOUT:   %assoc0.43db8b.1: %ImplicitAs.assoc_type.837 = assoc_entity element0, imports.%Core.import_ref.207961.1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.dbb: type = facet_type <@ImplicitAs, @ImplicitAs(%facet_type.6ff)> [concrete]
+// CHECK:STDOUT:   %Convert.type.bd1: type = fn_type @Convert, @ImplicitAs(%facet_type.6ff) [concrete]
+// CHECK:STDOUT:   %Convert.af7: %Convert.type.bd1 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type.f1b: type = assoc_entity_type %ImplicitAs.type.dbb [concrete]
+// CHECK:STDOUT:   %assoc0.976: %ImplicitAs.assoc_type.f1b = assoc_entity element0, imports.%Core.import_ref.207961.1 [concrete]
+// CHECK:STDOUT:   %assoc0.43db8b.2: %ImplicitAs.assoc_type.837 = assoc_entity element0, imports.%Core.import_ref.207961.2 [symbolic]
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: imports {
+// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
+// CHECK:STDOUT:     .BitAnd = %Core.BitAnd
+// CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
+// CHECK:STDOUT:     import Core//default
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %Core.import_ref.ad0 = import_ref Core//default, inst59 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.08d: %BitAnd.assoc_type = import_ref Core//default, loc8_41, loaded [concrete = constants.%assoc0.a63]
+// CHECK:STDOUT:   %Core.Op = import_ref Core//default, Op, unloaded
+// CHECK:STDOUT:   %Core.import_ref.51c: <witness> = import_ref Core//default, loc11_36, loaded [symbolic = @impl.f92.%impl_witness (constants.%impl_witness.b81)]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc11_14, loaded [symbolic = @impl.f92.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.583: type = import_ref Core//default, loc11_24, loaded [symbolic = @impl.f92.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.9c1: type = import_ref Core//default, loc11_29, loaded [concrete = constants.%BitAnd.type]
+// CHECK:STDOUT:   %Core.import_ref.1e6: @impl.f92.%Op.type (%Op.type.f99) = import_ref Core//default, loc12_42, loaded [symbolic = @impl.f92.%Op (constants.%Op.05a)]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc11_14, loaded [symbolic = @impl.f92.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.040: %BitAnd.type = import_ref Core//default, inst59 [no loc], loaded [symbolic = constants.%Self.25f]
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.3: type = import_ref Core//default, loc3_22, loaded [symbolic = @ImplicitAs.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.ff5 = import_ref Core//default, inst24 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.630: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.837) = import_ref Core//default, loc4_32, loaded [symbolic = @ImplicitAs.%assoc0 (constants.%assoc0.43db8b.2)]
+// CHECK:STDOUT:   %Core.Convert = import_ref Core//default, Convert, unloaded
+// CHECK:STDOUT:   %Core.import_ref.5ab3ec.4: type = import_ref Core//default, loc3_22, loaded [symbolic = @ImplicitAs.%T (constants.%T)]
+// CHECK:STDOUT:   %Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = import_ref Core//default, inst24 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.519)]
+// CHECK:STDOUT:   %Core.import_ref.207961.1 = import_ref Core//default, loc4_32, unloaded
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: file {
+// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
+// CHECK:STDOUT:     .Core = imports.%Core
+// CHECK:STDOUT:     .Eats = %Eats.decl
+// CHECK:STDOUT:     .Animal = %Animal.decl
+// CHECK:STDOUT:     .Tame = %Tame.decl
+// CHECK:STDOUT:     .FeedTame2 = %FeedTame2.decl
+// CHECK:STDOUT:     .HandleTameAnimal2 = %HandleTameAnimal2.decl
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %Core.import = import Core
+// CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
+// CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
+// CHECK:STDOUT:   %Tame.decl: type = interface_decl @Tame [concrete = constants.%Tame.type] {} {}
+// CHECK:STDOUT:   impl_decl @impl.e7b [concrete] {
+// CHECK:STDOUT:     %A.patt.loc9_14.1: %Animal.type = symbolic_binding_pattern A, 0 [symbolic = %A.patt.loc9_14.2 (constants.%A.patt)]
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %A.ref: %Animal.type = name_ref A, %A.loc9_14.1 [symbolic = %A.loc9_14.2 (constants.%A)]
+// CHECK:STDOUT:     %A.as_type.loc9_26.1: type = facet_access_type %A.ref [symbolic = %A.as_type.loc9_26.2 (constants.%A.as_type)]
+// CHECK:STDOUT:     %.loc9: type = converted %A.ref, %A.as_type.loc9_26.1 [symbolic = %A.as_type.loc9_26.2 (constants.%A.as_type)]
+// CHECK:STDOUT:     %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
+// CHECK:STDOUT:     %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
+// CHECK:STDOUT:     %A.loc9_14.1: %Animal.type = bind_symbolic_name A, 0 [symbolic = %A.loc9_14.2 (constants.%A)]
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (), @impl.e7b(constants.%A) [symbolic = @impl.e7b.%impl_witness (constants.%impl_witness.110)]
+// CHECK:STDOUT:   %FeedTame2.decl: %FeedTame2.type = fn_decl @FeedTame2 [concrete = constants.%FeedTame2] {
+// CHECK:STDOUT:     %V.patt.loc11_14.1: %facet_type.6ff = symbolic_binding_pattern V, 0 [symbolic = %V.patt.loc11_14.2 (constants.%V.patt)]
+// CHECK:STDOUT:     %v.patt: @FeedTame2.%V.as_type.loc11_34.2 (%V.as_type) = binding_pattern v
+// CHECK:STDOUT:     %v.param_patt: @FeedTame2.%V.as_type.loc11_34.2 (%V.as_type) = value_param_pattern %v.patt, call_param0
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %.loc11_23.1: type = splice_block %.loc11_23.3 [concrete = constants.%facet_type.6ff] {
+// CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
+// CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
+// CHECK:STDOUT:       %impl.elem0: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Tame.ref, %impl.elem0 [concrete = constants.%Op.bound.9f8]
+// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %bound_method, @Op.1(type) [concrete = constants.%Op.specific_fn.163]
+// CHECK:STDOUT:       %type.and: init type = call %specific_fn(%Tame.ref, %Eats.ref) [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:       %.loc11_23.2: type = value_of_initializer %type.and [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:       %.loc11_23.3: type = converted %type.and, %.loc11_23.2 [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %V.loc11_14.1: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.2 (constants.%V)]
+// CHECK:STDOUT:     %v.param: @FeedTame2.%V.as_type.loc11_34.2 (%V.as_type) = value_param call_param0
+// CHECK:STDOUT:     %.loc11_34.1: type = splice_block %.loc11_34.2 [symbolic = %V.as_type.loc11_34.2 (constants.%V.as_type)] {
+// CHECK:STDOUT:       %V.ref: %facet_type.6ff = name_ref V, %V.loc11_14.1 [symbolic = %V.loc11_14.2 (constants.%V)]
+// CHECK:STDOUT:       %V.as_type.loc11_34.1: type = facet_access_type %V.ref [symbolic = %V.as_type.loc11_34.2 (constants.%V.as_type)]
+// CHECK:STDOUT:       %.loc11_34.2: type = converted %V.ref, %V.as_type.loc11_34.1 [symbolic = %V.as_type.loc11_34.2 (constants.%V.as_type)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %v: @FeedTame2.%V.as_type.loc11_34.2 (%V.as_type) = bind_name v, %v.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT:   %HandleTameAnimal2.decl: %HandleTameAnimal2.type = fn_decl @HandleTameAnimal2 [concrete = constants.%HandleTameAnimal2] {
+// CHECK:STDOUT:     %W.patt.loc13_22.1: %facet_type.65c = symbolic_binding_pattern W, 0 [symbolic = %W.patt.loc13_22.2 (constants.%W.patt)]
+// CHECK:STDOUT:     %w.patt: @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type) = binding_pattern w
+// CHECK:STDOUT:     %w.param_patt: @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type) = value_param_pattern %w.patt, call_param0
+// CHECK:STDOUT:   } {
+// CHECK:STDOUT:     %.loc13_33.1: type = splice_block %.loc13_33.3 [concrete = constants.%facet_type.65c] {
+// CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
+// CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
+// CHECK:STDOUT:       %impl.elem0: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Animal.ref, %impl.elem0 [concrete = constants.%Op.bound.fe3]
+// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %bound_method, @Op.1(type) [concrete = constants.%Op.specific_fn.1fd]
+// CHECK:STDOUT:       %type.and: init type = call %specific_fn(%Animal.ref, %Tame.ref) [concrete = constants.%facet_type.65c]
+// CHECK:STDOUT:       %.loc13_33.2: type = value_of_initializer %type.and [concrete = constants.%facet_type.65c]
+// CHECK:STDOUT:       %.loc13_33.3: type = converted %type.and, %.loc13_33.2 [concrete = constants.%facet_type.65c]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %W.loc13_22.1: %facet_type.65c = bind_symbolic_name W, 0 [symbolic = %W.loc13_22.2 (constants.%W)]
+// CHECK:STDOUT:     %w.param: @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type) = value_param call_param0
+// CHECK:STDOUT:     %.loc13_44.1: type = splice_block %.loc13_44.2 [symbolic = %W.as_type.loc13_44.2 (constants.%W.as_type)] {
+// CHECK:STDOUT:       %W.ref: %facet_type.65c = name_ref W, %W.loc13_22.1 [symbolic = %W.loc13_22.2 (constants.%W)]
+// CHECK:STDOUT:       %W.as_type.loc13_44.1: type = facet_access_type %W.ref [symbolic = %W.as_type.loc13_44.2 (constants.%W.as_type)]
+// CHECK:STDOUT:       %.loc13_44.2: type = converted %W.ref, %W.as_type.loc13_44.1 [symbolic = %W.as_type.loc13_44.2 (constants.%W.as_type)]
+// CHECK:STDOUT:     }
+// CHECK:STDOUT:     %w: @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type) = bind_name w, %w.param
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Eats {
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Animal {
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @Tame {
+// CHECK:STDOUT:   %Self: %Tame.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.7ee]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = %Self
+// CHECK:STDOUT:   witness = ()
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: interface @BitAnd [from "core.carbon"] {
+// CHECK:STDOUT: !members:
+// CHECK:STDOUT:   .Self = imports.%Core.import_ref.ad0
+// CHECK:STDOUT:   .Op = imports.%Core.import_ref.08d
+// CHECK:STDOUT:   witness = (imports.%Core.Op)
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic interface @ImplicitAs(imports.%Core.import_ref.5ab3ec.3: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
+// CHECK:STDOUT:   %Self: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%T) [symbolic = %Convert.type (constants.%Convert.type.275)]
+// CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.275) = struct_value () [symbolic = %Convert (constants.%Convert.42e)]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.837)]
+// CHECK:STDOUT:   %assoc0: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.837) = assoc_entity element0, imports.%Core.import_ref.207961.1 [symbolic = %assoc0 (constants.%assoc0.43db8b.1)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   interface {
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.ff5
+// CHECK:STDOUT:     .Convert = imports.%Core.import_ref.630
+// CHECK:STDOUT:     witness = (imports.%Core.Convert)
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic impl @impl.e7b(%A.loc9_14.1: %Animal.type) {
+// CHECK:STDOUT:   %A.loc9_14.2: %Animal.type = bind_symbolic_name A, 0 [symbolic = %A.loc9_14.2 (constants.%A)]
+// CHECK:STDOUT:   %A.patt.loc9_14.2: %Animal.type = symbolic_binding_pattern A, 0 [symbolic = %A.patt.loc9_14.2 (constants.%A.patt)]
+// CHECK:STDOUT:   %A.as_type.loc9_26.2: type = facet_access_type %A.loc9_14.2 [symbolic = %A.as_type.loc9_26.2 (constants.%A.as_type)]
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (), @impl.e7b(%A.loc9_14.2) [symbolic = %impl_witness (constants.%impl_witness.110)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:
+// CHECK:STDOUT:   impl: %.loc9 as %Eats.ref {
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     witness = file.%impl_witness
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic impl @impl.f92(imports.%Core.import_ref.5ab3ec.1: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt)]
+// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl.f92(%T) [symbolic = %impl_witness (constants.%impl_witness.db8)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type: type = fn_type @Op.1, @impl.f92(%T) [symbolic = %Op.type (constants.%Op.type.f99)]
+// CHECK:STDOUT:   %Op: @impl.f92.%Op.type (%Op.type.f99) = struct_value () [symbolic = %Op (constants.%Op.05a)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @impl.f92.%T (%T) [symbolic = %require_complete (constants.%require_complete.4ae)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   impl: imports.%Core.import_ref.583 as imports.%Core.import_ref.9c1 {
+// CHECK:STDOUT:   !members:
+// CHECK:STDOUT:     witness = imports.%Core.import_ref.51c
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.1(imports.%Core.import_ref.5ab3ec.2: type) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.1.%T (%T)](%other.param_patt: @Op.1.%T (%T)) -> @Op.1.%T (%T) = "type.and";
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Op.2(imports.%Core.import_ref.040: %BitAnd.type) [from "core.carbon"] {
+// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.25f)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.19f)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Op.2.%Self.as_type (%Self.as_type.19f)](%other.param_patt: @Op.2.%Self.as_type (%Self.as_type.19f)) -> @Op.2.%Self.as_type (%Self.as_type.19f);
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @FeedTame2(%V.loc11_14.1: %facet_type.6ff) {
+// CHECK:STDOUT:   %V.loc11_14.2: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.2 (constants.%V)]
+// CHECK:STDOUT:   %V.patt.loc11_14.2: %facet_type.6ff = symbolic_binding_pattern V, 0 [symbolic = %V.patt.loc11_14.2 (constants.%V.patt)]
+// CHECK:STDOUT:   %V.as_type.loc11_34.2: type = facet_access_type %V.loc11_14.2 [symbolic = %V.as_type.loc11_34.2 (constants.%V.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @FeedTame2.%V.as_type.loc11_34.2 (%V.as_type) [symbolic = %require_complete (constants.%require_complete.940)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%V.patt.loc11_14.1: %facet_type.6ff](%v.param_patt: @FeedTame2.%V.as_type.loc11_34.2 (%V.as_type)) {
+// CHECK:STDOUT:   !entry:
+// CHECK:STDOUT:     return
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @HandleTameAnimal2(%W.loc13_22.1: %facet_type.65c) {
+// CHECK:STDOUT:   %W.loc13_22.2: %facet_type.65c = bind_symbolic_name W, 0 [symbolic = %W.loc13_22.2 (constants.%W)]
+// CHECK:STDOUT:   %W.patt.loc13_22.2: %facet_type.65c = symbolic_binding_pattern W, 0 [symbolic = %W.patt.loc13_22.2 (constants.%W.patt)]
+// CHECK:STDOUT:   %W.as_type.loc13_44.2: type = facet_access_type %W.loc13_22.2 [symbolic = %W.as_type.loc13_44.2 (constants.%W.as_type)]
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type) [symbolic = %require_complete (constants.%require_complete.ba9)]
+// CHECK:STDOUT:   %W.as_wit.loc24_14.3: <witness> = facet_access_witness %W.loc13_22.2 [symbolic = %W.as_wit.loc24_14.3 (constants.%W.as_wit)]
+// CHECK:STDOUT:   %Animal.facet.loc24_14.3: %Animal.type = facet_value %W.as_type.loc13_44.2, %W.as_wit.loc24_14.3 [symbolic = %Animal.facet.loc24_14.3 (constants.%Animal.facet)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%W.patt.loc13_22.1: %facet_type.65c](%w.param_patt: @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type)) {
+// CHECK:STDOUT:   !entry:
+// CHECK:STDOUT:     %FeedTame2.ref: %FeedTame2.type = name_ref FeedTame2, file.%FeedTame2.decl [concrete = constants.%FeedTame2]
+// CHECK:STDOUT:     %w.ref: @HandleTameAnimal2.%W.as_type.loc13_44.2 (%W.as_type) = name_ref w, %w
+// CHECK:STDOUT:     %W.as_type.loc24: type = facet_access_type constants.%W [symbolic = %W.as_type.loc13_44.2 (constants.%W.as_type)]
+// CHECK:STDOUT:     %.loc24_14.1: type = converted constants.%W, %W.as_type.loc24 [symbolic = %W.as_type.loc13_44.2 (constants.%W.as_type)]
+// CHECK:STDOUT:     %W.as_wit.loc24_14.1: <witness> = facet_access_witness constants.%W [symbolic = %W.as_wit.loc24_14.3 (constants.%W.as_wit)]
+// CHECK:STDOUT:     %Animal.facet.loc24_14.1: %Animal.type = facet_value constants.%W.as_type, %W.as_wit.loc24_14.1 [symbolic = %Animal.facet.loc24_14.3 (constants.%Animal.facet)]
+// CHECK:STDOUT:     %.loc24_14.2: %Animal.type = converted %.loc24_14.1, %Animal.facet.loc24_14.1 [symbolic = %Animal.facet.loc24_14.3 (constants.%Animal.facet)]
+// CHECK:STDOUT:     %W.as_wit.loc24_14.2: <witness> = facet_access_witness constants.%W [symbolic = %W.as_wit.loc24_14.3 (constants.%W.as_wit)]
+// CHECK:STDOUT:     %Animal.facet.loc24_14.2: %Animal.type = facet_value constants.%W.as_type, %W.as_wit.loc24_14.2 [symbolic = %Animal.facet.loc24_14.3 (constants.%Animal.facet)]
+// CHECK:STDOUT:     %.loc24_14.3: %Animal.type = converted constants.%W.as_type, %Animal.facet.loc24_14.2 [symbolic = %Animal.facet.loc24_14.3 (constants.%Animal.facet)]
+// CHECK:STDOUT:     %.loc24_14.4: %facet_type.6ff = converted constants.%W.as_type, <error> [concrete = <error>]
+// CHECK:STDOUT:     return
+// CHECK:STDOUT:   }
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: generic fn @Convert(imports.%Core.import_ref.5ab3ec.4: type, imports.%Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62)) [from "core.carbon"] {
+// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
+// CHECK:STDOUT:   %Self: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.40a)]
+// CHECK:STDOUT:
+// CHECK:STDOUT:   fn[%self.param_patt: @Convert.%Self.as_type (%Self.as_type.40a)]() -> @Convert.%T (%T);
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl.e7b(constants.%A) {
+// CHECK:STDOUT:   %A.loc9_14.2 => constants.%A
+// CHECK:STDOUT:   %A.patt.loc9_14.2 => constants.%A
+// CHECK:STDOUT:   %A.as_type.loc9_26.2 => constants.%A.as_type
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.110
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl.e7b(%A.loc9_14.2) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl.f92(constants.%T) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT:   %T.patt => constants.%T
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.db8
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl.f92(%T) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(constants.%T) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl.f92(type) {
+// CHECK:STDOUT:   %T => type
+// CHECK:STDOUT:   %T.patt => type
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.3ea
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %Op.type => constants.%Op.type.eb8
+// CHECK:STDOUT:   %Op => constants.%Op.444
+// CHECK:STDOUT:   %require_complete => constants.%complete_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.2(constants.%Self.25f) {
+// CHECK:STDOUT:   %Self => constants.%Self.25f
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.19f
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Op.1(type) {
+// CHECK:STDOUT:   %T => type
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @FeedTame2(constants.%V) {
+// CHECK:STDOUT:   %V.loc11_14.2 => constants.%V
+// CHECK:STDOUT:   %V.patt.loc11_14.2 => constants.%V
+// CHECK:STDOUT:   %V.as_type.loc11_34.2 => constants.%V.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @HandleTameAnimal2(constants.%W) {
+// CHECK:STDOUT:   %W.loc13_22.2 => constants.%W
+// CHECK:STDOUT:   %W.patt.loc13_22.2 => constants.%W
+// CHECK:STDOUT:   %W.as_type.loc13_44.2 => constants.%W.as_type
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @impl.e7b(constants.%Animal.facet) {
+// CHECK:STDOUT:   %A.loc9_14.2 => constants.%Animal.facet
+// CHECK:STDOUT:   %A.patt.loc9_14.2 => constants.%Animal.facet
+// CHECK:STDOUT:   %A.as_type.loc9_26.2 => constants.%W.as_type
+// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.c31
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(constants.%T) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT:   %T.patt => constants.%T
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(%T) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(@Convert.%T) {}
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @Convert(constants.%T, constants.%Self.519) {
+// CHECK:STDOUT:   %T => constants.%T
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.d62
+// CHECK:STDOUT:   %Self => constants.%Self.519
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.40a
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @ImplicitAs(constants.%facet_type.6ff) {
+// CHECK:STDOUT:   %T => constants.%facet_type.6ff
+// CHECK:STDOUT:   %T.patt => constants.%facet_type.6ff
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.dbb
+// CHECK:STDOUT:   %Self => constants.%Self.519
+// CHECK:STDOUT:   %Convert.type => constants.%Convert.type.bd1
+// CHECK:STDOUT:   %Convert => constants.%Convert.af7
+// CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.f1b
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.976
+// CHECK:STDOUT: }
+// CHECK:STDOUT:

toolchain/check/testdata/builtin_conversions/no_prelude/fail_todo_convert_facet_value_to_narrowed_facet_type.carbon

@@ -1,598 +0,0 @@
-// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
-// Exceptions. See /LICENSE for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-// AUTOUPDATE
-// TIP: To test this file alone, run:
-// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/builtin_conversions/no_prelude/fail_todo_convert_facet_value_to_narrowed_facet_type.carbon
-// TIP: To dump output, run:
-// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/builtin_conversions/no_prelude/fail_todo_convert_facet_value_to_narrowed_facet_type.carbon
-
-// --- core.carbon
-
-package Core;
-
-interface ImplicitAs(T:! type) {
-  fn Convert[self: Self]() -> T;
-}
-
-interface BitAnd {
-  fn Op[self: Self](other: Self) -> Self;
-}
-
-impl forall [T:! type] T as BitAnd {
-  fn Op[self: Self](other: Self) -> Self = "type.and";
-}
-
-// --- fail_todo_convert_to_narrowed_facet_type.carbon
-
-library "[[@TEST_NAME]]";
-
-import Core;
-
-interface Eats {}
-interface Animal {}
-
-fn Feed[T:! Eats](e: T) {}
-
-// CHECK:STDERR: fail_todo_convert_to_narrowed_facet_type.carbon:[[@LINE+10]]:44: error: cannot implicitly convert value of type `type` to `Eats` [ImplicitAsConversionFailure]
-// CHECK:STDERR: fn HandleAnimal[T:! Animal & Eats](a: T) { Feed(a); }
-// CHECK:STDERR:                                            ^~~~~~~
-// CHECK:STDERR: fail_todo_convert_to_narrowed_facet_type.carbon:[[@LINE+7]]:44: note: type `type` does not implement interface `Core.ImplicitAs(Eats)` [MissingImplInMemberAccessNote]
-// CHECK:STDERR: fn HandleAnimal[T:! Animal & Eats](a: T) { Feed(a); }
-// CHECK:STDERR:                                            ^~~~~~~
-// CHECK:STDERR: fail_todo_convert_to_narrowed_facet_type.carbon:[[@LINE-8]]:1: note: while deducing parameters of generic declared here [DeductionGenericHere]
-// CHECK:STDERR: fn Feed[T:! Eats](e: T) {}
-// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
-// CHECK:STDERR:
-fn HandleAnimal[T:! Animal & Eats](a: T) { Feed(a); }
-
-// CHECK:STDOUT: --- core.carbon
-// CHECK:STDOUT:
-// CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.96f: type = generic_interface_type @ImplicitAs [concrete]
-// CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.96f = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.07f: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.0f3: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.419: type = facet_access_type %Self.0f3 [symbolic]
-// CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%T) [symbolic]
-// CHECK:STDOUT:   %Convert: %Convert.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type %ImplicitAs.type.07f [symbolic]
-// CHECK:STDOUT:   %assoc0.a50: %ImplicitAs.assoc_type = assoc_entity element0, @ImplicitAs.%Convert.decl [symbolic]
-// CHECK:STDOUT:   %BitAnd.type: type = facet_type <@BitAnd> [concrete]
-// CHECK:STDOUT:   %Self.e44: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.560: type = facet_access_type %Self.e44 [symbolic]
-// CHECK:STDOUT:   %Op.type.613: type = fn_type @Op.1 [concrete]
-// CHECK:STDOUT:   %Op.d98: %Op.type.613 = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAnd.assoc_type: type = assoc_entity_type %BitAnd.type [concrete]
-// CHECK:STDOUT:   %assoc0.121: %BitAnd.assoc_type = assoc_entity element0, @BitAnd.%Op.decl [concrete]
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (@impl.%Op.decl), @impl(%T) [symbolic]
-// CHECK:STDOUT:   %Op.type.28d: type = fn_type @Op.2, @impl(%T) [symbolic]
-// CHECK:STDOUT:   %Op.902: %Op.type.28d = struct_value () [symbolic]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic]
-// CHECK:STDOUT:   %BitAnd.facet: %BitAnd.type = facet_value %T, %impl_witness [symbolic]
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: file {
-// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
-// CHECK:STDOUT:     .ImplicitAs = %ImplicitAs.decl
-// CHECK:STDOUT:     .BitAnd = %BitAnd.decl
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.decl: %ImplicitAs.type.96f = interface_decl @ImplicitAs [concrete = constants.%ImplicitAs.generic] {
-// CHECK:STDOUT:     %T.patt.loc4_22.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_22.2 (constants.%T.patt)]
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.loc4_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_22.2 (constants.%T)]
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %BitAnd.decl: type = interface_decl @BitAnd [concrete = constants.%BitAnd.type] {} {}
-// CHECK:STDOUT:   impl_decl @impl [concrete] {
-// CHECK:STDOUT:     %T.patt.loc12_14.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc12_14.2 (constants.%T.patt)]
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc12_14.1 [symbolic = %T.loc12_14.2 (constants.%T)]
-// CHECK:STDOUT:     %BitAnd.ref: type = name_ref BitAnd, file.%BitAnd.decl [concrete = constants.%BitAnd.type]
-// CHECK:STDOUT:     %T.loc12_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T)]
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (@impl.%Op.decl), @impl(constants.%T) [symbolic = @impl.%impl_witness (constants.%impl_witness)]
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic interface @ImplicitAs(%T.loc4_22.1: type) {
-// CHECK:STDOUT:   %T.loc4_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_22.2 (constants.%T)]
-// CHECK:STDOUT:   %T.patt.loc4_22.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_22.2 (constants.%T.patt)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T.loc4_22.2)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self.2: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f3)]
-// CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%T.loc4_22.2) [symbolic = %Convert.type (constants.%Convert.type)]
-// CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type) = struct_value () [symbolic = %Convert (constants.%Convert)]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type)]
-// CHECK:STDOUT:   %assoc0.loc5_32.2: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %Convert.decl [symbolic = %assoc0.loc5_32.2 (constants.%assoc0.a50)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f3)]
-// CHECK:STDOUT:     %Convert.decl: @ImplicitAs.%Convert.type (%Convert.type) = fn_decl @Convert [symbolic = @ImplicitAs.%Convert (constants.%Convert)] {
-// CHECK:STDOUT:       %self.patt: @Convert.%Self.as_type.loc5_20.1 (%Self.as_type.419) = binding_pattern self
-// CHECK:STDOUT:       %self.param_patt: @Convert.%Self.as_type.loc5_20.1 (%Self.as_type.419) = value_param_pattern %self.patt, call_param0
-// CHECK:STDOUT:       %return.patt: @Convert.%T (%T) = return_slot_pattern
-// CHECK:STDOUT:       %return.param_patt: @Convert.%T (%T) = out_param_pattern %return.patt, call_param1
-// CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %T.ref: type = name_ref T, @ImplicitAs.%T.loc4_22.1 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self.param: @Convert.%Self.as_type.loc5_20.1 (%Self.as_type.419) = value_param call_param0
-// CHECK:STDOUT:       %.loc5_20.1: type = splice_block %.loc5_20.3 [symbolic = %Self.as_type.loc5_20.1 (constants.%Self.as_type.419)] {
-// CHECK:STDOUT:         %.loc5_20.2: @Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%T) [symbolic = %Self (constants.%Self.0f3)]
-// CHECK:STDOUT:         %Self.ref: @Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = name_ref Self, %.loc5_20.2 [symbolic = %Self (constants.%Self.0f3)]
-// CHECK:STDOUT:         %Self.as_type.loc5_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_20.1 (constants.%Self.as_type.419)]
-// CHECK:STDOUT:         %.loc5_20.3: type = converted %Self.ref, %Self.as_type.loc5_20.2 [symbolic = %Self.as_type.loc5_20.1 (constants.%Self.as_type.419)]
-// CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @Convert.%Self.as_type.loc5_20.1 (%Self.as_type.419) = bind_name self, %self.param
-// CHECK:STDOUT:       %return.param: ref @Convert.%T (%T) = out_param call_param1
-// CHECK:STDOUT:       %return: ref @Convert.%T (%T) = return_slot %return.param
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %assoc0.loc5_32.1: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %Convert.decl [symbolic = %assoc0.loc5_32.2 (constants.%assoc0.a50)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = %Self.1
-// CHECK:STDOUT:     .T = <poisoned>
-// CHECK:STDOUT:     .Convert = %assoc0.loc5_32.1
-// CHECK:STDOUT:     witness = (%Convert.decl)
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: interface @BitAnd {
-// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e44]
-// CHECK:STDOUT:   %Op.decl: %Op.type.613 = fn_decl @Op.1 [concrete = constants.%Op.d98] {
-// CHECK:STDOUT:     %self.patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = binding_pattern self
-// CHECK:STDOUT:     %self.param_patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = value_param_pattern %self.patt, call_param0
-// CHECK:STDOUT:     %other.patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = binding_pattern other
-// CHECK:STDOUT:     %other.param_patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = value_param_pattern %other.patt, call_param1
-// CHECK:STDOUT:     %return.patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = return_slot_pattern
-// CHECK:STDOUT:     %return.param_patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = out_param_pattern %return.patt, call_param2
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc9_37: %BitAnd.type = name_ref Self, @BitAnd.%Self [symbolic = %Self (constants.%Self.e44)]
-// CHECK:STDOUT:     %Self.as_type.loc9_37: type = facet_access_type %Self.ref.loc9_37 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:     %.loc9_37: type = converted %Self.ref.loc9_37, %Self.as_type.loc9_37 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:     %self.param: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = value_param call_param0
-// CHECK:STDOUT:     %.loc9_15.1: type = splice_block %.loc9_15.2 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)] {
-// CHECK:STDOUT:       %Self.ref.loc9_15: %BitAnd.type = name_ref Self, @BitAnd.%Self [symbolic = %Self (constants.%Self.e44)]
-// CHECK:STDOUT:       %Self.as_type.loc9_15.2: type = facet_access_type %Self.ref.loc9_15 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:       %.loc9_15.2: type = converted %Self.ref.loc9_15, %Self.as_type.loc9_15.2 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = bind_name self, %self.param
-// CHECK:STDOUT:     %other.param: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = value_param call_param1
-// CHECK:STDOUT:     %.loc9_28.1: type = splice_block %.loc9_28.2 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)] {
-// CHECK:STDOUT:       %Self.ref.loc9_28: %BitAnd.type = name_ref Self, @BitAnd.%Self [symbolic = %Self (constants.%Self.e44)]
-// CHECK:STDOUT:       %Self.as_type.loc9_28: type = facet_access_type %Self.ref.loc9_28 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:       %.loc9_28.2: type = converted %Self.ref.loc9_28, %Self.as_type.loc9_28 [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %other: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = bind_name other, %other.param
-// CHECK:STDOUT:     %return.param: ref @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560) = return_slot %return.param
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %assoc0: %BitAnd.assoc_type = assoc_entity element0, %Op.decl [concrete = constants.%assoc0.121]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = %Self
-// CHECK:STDOUT:   .Op = %assoc0
-// CHECK:STDOUT:   witness = (%Op.decl)
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @impl(%T.loc12_14.1: type) {
-// CHECK:STDOUT:   %T.loc12_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T)]
-// CHECK:STDOUT:   %T.patt.loc12_14.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc12_14.2 (constants.%T.patt)]
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (%Op.decl), @impl(%T.loc12_14.2) [symbolic = %impl_witness (constants.%impl_witness)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Op.type: type = fn_type @Op.2, @impl(%T.loc12_14.2) [symbolic = %Op.type (constants.%Op.type.28d)]
-// CHECK:STDOUT:   %Op: @impl.%Op.type (%Op.type.28d) = struct_value () [symbolic = %Op (constants.%Op.902)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @impl.%T.loc12_14.2 (%T) [symbolic = %require_complete (constants.%require_complete)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   impl: %T.ref as %BitAnd.ref {
-// CHECK:STDOUT:     %Op.decl: @impl.%Op.type (%Op.type.28d) = fn_decl @Op.2 [symbolic = @impl.%Op (constants.%Op.902)] {
-// CHECK:STDOUT:       %self.patt: @Op.2.%T (%T) = binding_pattern self
-// CHECK:STDOUT:       %self.param_patt: @Op.2.%T (%T) = value_param_pattern %self.patt, call_param0
-// CHECK:STDOUT:       %other.patt: @Op.2.%T (%T) = binding_pattern other
-// CHECK:STDOUT:       %other.param_patt: @Op.2.%T (%T) = value_param_pattern %other.patt, call_param1
-// CHECK:STDOUT:       %return.patt: @Op.2.%T (%T) = return_slot_pattern
-// CHECK:STDOUT:       %return.param_patt: @Op.2.%T (%T) = out_param_pattern %return.patt, call_param2
-// CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %Self.ref.loc13_37: type = name_ref Self, @impl.%T.ref [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self.param: @Op.2.%T (%T) = value_param call_param0
-// CHECK:STDOUT:       %Self.ref.loc13_15: type = name_ref Self, @impl.%T.ref [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self: @Op.2.%T (%T) = bind_name self, %self.param
-// CHECK:STDOUT:       %other.param: @Op.2.%T (%T) = value_param call_param1
-// CHECK:STDOUT:       %Self.ref.loc13_28: type = name_ref Self, @impl.%T.ref [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %other: @Op.2.%T (%T) = bind_name other, %other.param
-// CHECK:STDOUT:       %return.param: ref @Op.2.%T (%T) = out_param call_param2
-// CHECK:STDOUT:       %return: ref @Op.2.%T (%T) = return_slot %return.param
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:
-// CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Op = %Op.decl
-// CHECK:STDOUT:     witness = file.%impl_witness
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Convert(@ImplicitAs.%T.loc4_22.1: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f)) {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0f3)]
-// CHECK:STDOUT:   %Self.as_type.loc5_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_20.1 (constants.%Self.as_type.419)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%self.param_patt: @Convert.%Self.as_type.loc5_20.1 (%Self.as_type.419)]() -> @Convert.%T (%T);
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Op.1(@BitAnd.%Self: %BitAnd.type) {
-// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.e44)]
-// CHECK:STDOUT:   %Self.as_type.loc9_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc9_15.1 (constants.%Self.as_type.560)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%self.param_patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560)](%other.param_patt: @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560)) -> @Op.1.%Self.as_type.loc9_15.1 (%Self.as_type.560);
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Op.2(@impl.%T.loc12_14.1: type) {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%self.param_patt: @Op.2.%T (%T)](%other.param_patt: @Op.2.%T (%T)) -> @Op.2.%T (%T) = "type.and";
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(constants.%T) {
-// CHECK:STDOUT:   %T.loc4_22.2 => constants.%T
-// CHECK:STDOUT:   %T.patt.loc4_22.2 => constants.%T
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Convert(constants.%T, constants.%Self.0f3) {
-// CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.07f
-// CHECK:STDOUT:   %Self => constants.%Self.0f3
-// CHECK:STDOUT:   %Self.as_type.loc5_20.1 => constants.%Self.as_type.419
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(@Convert.%T) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(%T.loc4_22.2) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Op.1(constants.%Self.e44) {
-// CHECK:STDOUT:   %Self => constants.%Self.e44
-// CHECK:STDOUT:   %Self.as_type.loc9_15.1 => constants.%Self.as_type.560
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(constants.%T) {
-// CHECK:STDOUT:   %T.loc12_14.2 => constants.%T
-// CHECK:STDOUT:   %T.patt.loc12_14.2 => constants.%T
-// CHECK:STDOUT:   %impl_witness => constants.%impl_witness
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(%T.loc12_14.2) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Op.2(constants.%T) {
-// CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Op.1(constants.%BitAnd.facet) {
-// CHECK:STDOUT:   %Self => constants.%BitAnd.facet
-// CHECK:STDOUT:   %Self.as_type.loc9_15.1 => constants.%T
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: --- fail_todo_convert_to_narrowed_facet_type.carbon
-// CHECK:STDOUT:
-// CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %T.1b5: %Eats.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.patt.6be: %Eats.type = symbolic_binding_pattern T, 0 [symbolic]
-// CHECK:STDOUT:   %T.as_type.27d: type = facet_access_type %T.1b5 [symbolic]
-// CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
-// CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.c75: <witness> = require_complete_type %T.as_type.27d [symbolic]
-// CHECK:STDOUT:   %BitAnd.type: type = facet_type <@BitAnd> [concrete]
-// CHECK:STDOUT:   %Self.25f: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %BitAnd.assoc_type: type = assoc_entity_type %BitAnd.type [concrete]
-// CHECK:STDOUT:   %assoc0.a63: %BitAnd.assoc_type = assoc_entity element0, imports.%Core.import_ref.a93 [concrete]
-// CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.patt.e01: type = symbolic_binding_pattern T, 0 [symbolic]
-// CHECK:STDOUT:   %impl_witness.db8: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %Op.type.f99: type = fn_type @Op.1, @impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %Op.05a: %Op.type.f99 = struct_value () [symbolic]
-// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T.8b3 [symbolic]
-// CHECK:STDOUT:   %impl_witness.3ea: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(type) [concrete]
-// CHECK:STDOUT:   %impl_witness.b81: <witness> = impl_witness (imports.%Core.import_ref.bd4), @impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %Op.type.eb8: type = fn_type @Op.1, @impl(type) [concrete]
-// CHECK:STDOUT:   %Op.444: %Op.type.eb8 = struct_value () [concrete]
-// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness type [concrete]
-// CHECK:STDOUT:   %Op.type.27a: type = fn_type @Op.2 [concrete]
-// CHECK:STDOUT:   %Self.as_type.19f: type = facet_access_type %Self.25f [symbolic]
-// CHECK:STDOUT:   %BitAnd.facet: %BitAnd.type = facet_value type, %impl_witness.3ea [concrete]
-// CHECK:STDOUT:   %.d4d: type = fn_type_with_self_type %Op.type.27a, %BitAnd.facet [concrete]
-// CHECK:STDOUT:   %Op.bound: <bound method> = bound_method %Animal.type, %Op.444 [concrete]
-// CHECK:STDOUT:   %Op.specific_fn: <specific function> = specific_function %Op.bound, @Op.1(type) [concrete]
-// CHECK:STDOUT:   %facet_type: type = facet_type <@Eats & @Animal> [concrete]
-// CHECK:STDOUT:   %T.ec1: %facet_type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.patt.cdd: %facet_type = symbolic_binding_pattern T, 0 [symbolic]
-// CHECK:STDOUT:   %T.as_type.3bf: type = facet_access_type %T.ec1 [symbolic]
-// CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
-// CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.680: <witness> = require_complete_type %T.as_type.3bf [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.d62: type = facet_type <@ImplicitAs, @ImplicitAs(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.519: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Convert.type.275: type = fn_type @Convert, @ImplicitAs(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %Convert.42e: %Convert.type.275 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type.40a: type = facet_access_type %Self.519 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type.837: type = assoc_entity_type %ImplicitAs.type.d62 [symbolic]
-// CHECK:STDOUT:   %assoc0.43db8b.1: %ImplicitAs.assoc_type.837 = assoc_entity element0, imports.%Core.import_ref.207961.1 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.af9: type = facet_type <@ImplicitAs, @ImplicitAs(%Eats.type)> [concrete]
-// CHECK:STDOUT:   %Convert.type.9a9: type = fn_type @Convert, @ImplicitAs(%Eats.type) [concrete]
-// CHECK:STDOUT:   %Convert.35d: %Convert.type.9a9 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type.9a7: type = assoc_entity_type %ImplicitAs.type.af9 [concrete]
-// CHECK:STDOUT:   %assoc0.152: %ImplicitAs.assoc_type.9a7 = assoc_entity element0, imports.%Core.import_ref.207961.1 [concrete]
-// CHECK:STDOUT:   %assoc0.43db8b.2: %ImplicitAs.assoc_type.837 = assoc_entity element0, imports.%Core.import_ref.207961.2 [symbolic]
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
-// CHECK:STDOUT:     .BitAnd = %Core.BitAnd
-// CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
-// CHECK:STDOUT:     import Core//default
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.ad0 = import_ref Core//default, inst59 [no loc], unloaded
-// CHECK:STDOUT:   %Core.import_ref.08d: %BitAnd.assoc_type = import_ref Core//default, loc9_41, loaded [concrete = constants.%assoc0.a63]
-// CHECK:STDOUT:   %Core.Op = import_ref Core//default, Op, unloaded
-// CHECK:STDOUT:   %Core.import_ref.51c: <witness> = import_ref Core//default, loc12_36, loaded [symbolic = @impl.%impl_witness (constants.%impl_witness.b81)]
-// CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc12_14, loaded [symbolic = @impl.%T (constants.%T.8b3)]
-// CHECK:STDOUT:   %Core.import_ref.583: type = import_ref Core//default, loc12_24, loaded [symbolic = @impl.%T (constants.%T.8b3)]
-// CHECK:STDOUT:   %Core.import_ref.9c1: type = import_ref Core//default, loc12_29, loaded [concrete = constants.%BitAnd.type]
-// CHECK:STDOUT:   %Core.import_ref.1e6: @impl.%Op.type (%Op.type.f99) = import_ref Core//default, loc13_42, loaded [symbolic = @impl.%Op (constants.%Op.05a)]
-// CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc12_14, loaded [symbolic = @impl.%T (constants.%T.8b3)]
-// CHECK:STDOUT:   %Core.import_ref.040: %BitAnd.type = import_ref Core//default, inst59 [no loc], loaded [symbolic = constants.%Self.25f]
-// CHECK:STDOUT:   %Core.import_ref.5ab3ec.3: type = import_ref Core//default, loc4_22, loaded [symbolic = @ImplicitAs.%T (constants.%T.8b3)]
-// CHECK:STDOUT:   %Core.import_ref.ff5 = import_ref Core//default, inst24 [no loc], unloaded
-// CHECK:STDOUT:   %Core.import_ref.630: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.837) = import_ref Core//default, loc5_32, loaded [symbolic = @ImplicitAs.%assoc0 (constants.%assoc0.43db8b.2)]
-// CHECK:STDOUT:   %Core.Convert = import_ref Core//default, Convert, unloaded
-// CHECK:STDOUT:   %Core.import_ref.5ab3ec.4: type = import_ref Core//default, loc4_22, loaded [symbolic = @ImplicitAs.%T (constants.%T.8b3)]
-// CHECK:STDOUT:   %Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = import_ref Core//default, inst24 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.519)]
-// CHECK:STDOUT:   %Core.import_ref.207961.1 = import_ref Core//default, loc5_32, unloaded
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: file {
-// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
-// CHECK:STDOUT:     .Core = imports.%Core
-// CHECK:STDOUT:     .Eats = %Eats.decl
-// CHECK:STDOUT:     .Animal = %Animal.decl
-// CHECK:STDOUT:     .Feed = %Feed.decl
-// CHECK:STDOUT:     .HandleAnimal = %HandleAnimal.decl
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import = import Core
-// CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
-// CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
-// CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
-// CHECK:STDOUT:     %T.patt.loc9_9.1: %Eats.type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc9_9.2 (constants.%T.patt.6be)]
-// CHECK:STDOUT:     %e.patt: @Feed.%T.as_type.loc9_22.2 (%T.as_type.27d) = binding_pattern e
-// CHECK:STDOUT:     %e.param_patt: @Feed.%T.as_type.loc9_22.2 (%T.as_type.27d) = value_param_pattern %e.patt, call_param0
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
-// CHECK:STDOUT:     %T.loc9_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_9.2 (constants.%T.1b5)]
-// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc9_22.2 (%T.as_type.27d) = value_param call_param0
-// CHECK:STDOUT:     %.loc9_22.1: type = splice_block %.loc9_22.2 [symbolic = %T.as_type.loc9_22.2 (constants.%T.as_type.27d)] {
-// CHECK:STDOUT:       %T.ref: %Eats.type = name_ref T, %T.loc9_9.1 [symbolic = %T.loc9_9.2 (constants.%T.1b5)]
-// CHECK:STDOUT:       %T.as_type.loc9_22.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc9_22.2 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:       %.loc9_22.2: type = converted %T.ref, %T.as_type.loc9_22.1 [symbolic = %T.as_type.loc9_22.2 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc9_22.2 (%T.as_type.27d) = bind_name e, %e.param
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %T.patt.loc21_17.1: %facet_type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc21_17.2 (constants.%T.patt.cdd)]
-// CHECK:STDOUT:     %a.patt: @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf) = binding_pattern a
-// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf) = value_param_pattern %a.patt, call_param0
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc21_28.1: type = splice_block %.loc21_28.3 [concrete = constants.%facet_type] {
-// CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
-// CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
-// CHECK:STDOUT:       %impl.elem0: %.d4d = impl_witness_access constants.%impl_witness.3ea, element0 [concrete = constants.%Op.444]
-// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Animal.ref, %impl.elem0 [concrete = constants.%Op.bound]
-// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %bound_method, @Op.1(type) [concrete = constants.%Op.specific_fn]
-// CHECK:STDOUT:       %type.and: init type = call %specific_fn(%Animal.ref, %Eats.ref) [concrete = constants.%facet_type]
-// CHECK:STDOUT:       %.loc21_28.2: type = value_of_initializer %type.and [concrete = constants.%facet_type]
-// CHECK:STDOUT:       %.loc21_28.3: type = converted %type.and, %.loc21_28.2 [concrete = constants.%facet_type]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc21_17.1: %facet_type = bind_symbolic_name T, 0 [symbolic = %T.loc21_17.2 (constants.%T.ec1)]
-// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf) = value_param call_param0
-// CHECK:STDOUT:     %.loc21_39.1: type = splice_block %.loc21_39.2 [symbolic = %T.as_type.loc21_39.2 (constants.%T.as_type.3bf)] {
-// CHECK:STDOUT:       %T.ref: %facet_type = name_ref T, %T.loc21_17.1 [symbolic = %T.loc21_17.2 (constants.%T.ec1)]
-// CHECK:STDOUT:       %T.as_type.loc21_39.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc21_39.2 (constants.%T.as_type.3bf)]
-// CHECK:STDOUT:       %.loc21_39.2: type = converted %T.ref, %T.as_type.loc21_39.1 [symbolic = %T.as_type.loc21_39.2 (constants.%T.as_type.3bf)]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf) = bind_name a, %a.param
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = %Self
-// CHECK:STDOUT:   witness = ()
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = %Self
-// CHECK:STDOUT:   witness = ()
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: interface @BitAnd [from "core.carbon"] {
-// CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Core.import_ref.ad0
-// CHECK:STDOUT:   .Op = imports.%Core.import_ref.08d
-// CHECK:STDOUT:   witness = (imports.%Core.Op)
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic interface @ImplicitAs(imports.%Core.import_ref.5ab3ec.3: type) [from "core.carbon"] {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt.e01)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
-// CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%T) [symbolic = %Convert.type (constants.%Convert.type.275)]
-// CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.275) = struct_value () [symbolic = %Convert (constants.%Convert.42e)]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.837)]
-// CHECK:STDOUT:   %assoc0: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.837) = assoc_entity element0, imports.%Core.import_ref.207961.1 [symbolic = %assoc0 (constants.%assoc0.43db8b.1)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   interface {
-// CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.ff5
-// CHECK:STDOUT:     .Convert = imports.%Core.import_ref.630
-// CHECK:STDOUT:     witness = (imports.%Core.Convert)
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @impl(imports.%Core.import_ref.5ab3ec.1: type) [from "core.carbon"] {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt.e01)]
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (imports.%Core.import_ref.1e6), @impl(%T) [symbolic = %impl_witness (constants.%impl_witness.db8)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Op.type: type = fn_type @Op.1, @impl(%T) [symbolic = %Op.type (constants.%Op.type.f99)]
-// CHECK:STDOUT:   %Op: @impl.%Op.type (%Op.type.f99) = struct_value () [symbolic = %Op (constants.%Op.05a)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @impl.%T (%T.8b3) [symbolic = %require_complete (constants.%require_complete.4ae)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Core.import_ref.583 as imports.%Core.import_ref.9c1 {
-// CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Core.import_ref.51c
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Feed(%T.loc9_9.1: %Eats.type) {
-// CHECK:STDOUT:   %T.loc9_9.2: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_9.2 (constants.%T.1b5)]
-// CHECK:STDOUT:   %T.patt.loc9_9.2: %Eats.type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc9_9.2 (constants.%T.patt.6be)]
-// CHECK:STDOUT:   %T.as_type.loc9_22.2: type = facet_access_type %T.loc9_9.2 [symbolic = %T.as_type.loc9_22.2 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @Feed.%T.as_type.loc9_22.2 (%T.as_type.27d) [symbolic = %require_complete (constants.%require_complete.c75)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%T.patt.loc9_9.1: %Eats.type](%e.param_patt: @Feed.%T.as_type.loc9_22.2 (%T.as_type.27d)) {
-// CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     return
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Op.1(imports.%Core.import_ref.5ab3ec.2: type) [from "core.carbon"] {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%self.param_patt: @Op.1.%T (%T.8b3)](%other.param_patt: @Op.1.%T (%T.8b3)) -> @Op.1.%T (%T.8b3) = "type.and";
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Op.2(imports.%Core.import_ref.040: %BitAnd.type) [from "core.carbon"] {
-// CHECK:STDOUT:   %Self: %BitAnd.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.25f)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.19f)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%self.param_patt: @Op.2.%Self.as_type (%Self.as_type.19f)](%other.param_patt: @Op.2.%Self.as_type (%Self.as_type.19f)) -> @Op.2.%Self.as_type (%Self.as_type.19f);
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HandleAnimal(%T.loc21_17.1: %facet_type) {
-// CHECK:STDOUT:   %T.loc21_17.2: %facet_type = bind_symbolic_name T, 0 [symbolic = %T.loc21_17.2 (constants.%T.ec1)]
-// CHECK:STDOUT:   %T.patt.loc21_17.2: %facet_type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc21_17.2 (constants.%T.patt.cdd)]
-// CHECK:STDOUT:   %T.as_type.loc21_39.2: type = facet_access_type %T.loc21_17.2 [symbolic = %T.as_type.loc21_39.2 (constants.%T.as_type.3bf)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf) [symbolic = %require_complete (constants.%require_complete.680)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%T.patt.loc21_17.1: %facet_type](%a.param_patt: @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf)) {
-// CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %Feed.ref: %Feed.type = name_ref Feed, file.%Feed.decl [concrete = constants.%Feed]
-// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc21_39.2 (%T.as_type.3bf) = name_ref a, %a
-// CHECK:STDOUT:     %.loc21_50: %Eats.type = converted constants.%T.as_type.3bf, <error> [concrete = <error>]
-// CHECK:STDOUT:     return
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Convert(imports.%Core.import_ref.5ab3ec.4: type, imports.%Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62)) [from "core.carbon"] {
-// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.40a)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%self.param_patt: @Convert.%Self.as_type (%Self.as_type.40a)]() -> @Convert.%T (%T.8b3);
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Feed(constants.%T.1b5) {
-// CHECK:STDOUT:   %T.loc9_9.2 => constants.%T.1b5
-// CHECK:STDOUT:   %T.patt.loc9_9.2 => constants.%T.1b5
-// CHECK:STDOUT:   %T.as_type.loc9_22.2 => constants.%T.as_type.27d
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(constants.%T.8b3) {
-// CHECK:STDOUT:   %T => constants.%T.8b3
-// CHECK:STDOUT:   %T.patt => constants.%T.8b3
-// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.db8
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(%T) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Op.1(constants.%T.8b3) {
-// CHECK:STDOUT:   %T => constants.%T.8b3
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(type) {
-// CHECK:STDOUT:   %T => type
-// CHECK:STDOUT:   %T.patt => type
-// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.3ea
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Op.type => constants.%Op.type.eb8
-// CHECK:STDOUT:   %Op => constants.%Op.444
-// CHECK:STDOUT:   %require_complete => constants.%complete_type
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Op.2(constants.%Self.25f) {
-// CHECK:STDOUT:   %Self => constants.%Self.25f
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.19f
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Op.1(type) {
-// CHECK:STDOUT:   %T => type
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @HandleAnimal(constants.%T.ec1) {
-// CHECK:STDOUT:   %T.loc21_17.2 => constants.%T.ec1
-// CHECK:STDOUT:   %T.patt.loc21_17.2 => constants.%T.ec1
-// CHECK:STDOUT:   %T.as_type.loc21_39.2 => constants.%T.as_type.3bf
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(constants.%T.8b3) {
-// CHECK:STDOUT:   %T => constants.%T.8b3
-// CHECK:STDOUT:   %T.patt => constants.%T.8b3
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(%T) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(@Convert.%T) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @Convert(constants.%T.8b3, constants.%Self.519) {
-// CHECK:STDOUT:   %T => constants.%T.8b3
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.d62
-// CHECK:STDOUT:   %Self => constants.%Self.519
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.40a
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs(constants.%Eats.type) {
-// CHECK:STDOUT:   %T => constants.%Eats.type
-// CHECK:STDOUT:   %T.patt => constants.%Eats.type
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.af9
-// CHECK:STDOUT:   %Self => constants.%Self.519
-// CHECK:STDOUT:   %Convert.type => constants.%Convert.type.9a9
-// CHECK:STDOUT:   %Convert => constants.%Convert.35d
-// CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.9a7
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.152
-// CHECK:STDOUT: }
-// CHECK:STDOUT:

toolchain/check/testdata/impl/lookup/no_prelude/impl_forall.carbon

@@ -33,20 +33,6 @@ fn TestSpecific(a: A({})) -> {} {
   return a.(I({}).F)();
 }
 
-// --- find_blanket_impl.carbon
-library "[[@TEST_NAME]]";
-
-interface B {}
-interface C {}
-
-impl forall [T:! B] T as C {}
-
-fn FC[TC:! C](xc: TC) {}
-
-fn FB[TB:! B](xb: TB) {
-  FC(xb);
-}
-
 // CHECK:STDOUT: --- impl_forall.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
@@ -577,204 +563,3 @@ fn FB[TB:! B](xb: TB) {
 // CHECK:STDOUT:   %A.elem => constants.%A.elem.2af
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: --- find_blanket_impl.carbon
-// CHECK:STDOUT:
-// CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %B.type: type = facet_type <@B> [concrete]
-// CHECK:STDOUT:   %Self.783: %B.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %C.type: type = facet_type <@C> [concrete]
-// CHECK:STDOUT:   %Self.02e: %C.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %T: %B.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.patt: %B.type = symbolic_binding_pattern T, 0 [symbolic]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %impl_witness.1431bd.1: <witness> = impl_witness (), @impl(%T) [symbolic]
-// CHECK:STDOUT:   %TC: %C.type = bind_symbolic_name TC, 0 [symbolic]
-// CHECK:STDOUT:   %TC.patt: %C.type = symbolic_binding_pattern TC, 0 [symbolic]
-// CHECK:STDOUT:   %TC.as_type: type = facet_access_type %TC [symbolic]
-// CHECK:STDOUT:   %FC.type: type = fn_type @FC [concrete]
-// CHECK:STDOUT:   %FC: %FC.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.8ca: <witness> = require_complete_type %TC.as_type [symbolic]
-// CHECK:STDOUT:   %TB: %B.type = bind_symbolic_name TB, 0 [symbolic]
-// CHECK:STDOUT:   %TB.patt: %B.type = symbolic_binding_pattern TB, 0 [symbolic]
-// CHECK:STDOUT:   %TB.as_type: type = facet_access_type %TB [symbolic]
-// CHECK:STDOUT:   %FB.type: type = fn_type @FB [concrete]
-// CHECK:STDOUT:   %FB: %FB.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.e08: <witness> = require_complete_type %TB.as_type [symbolic]
-// CHECK:STDOUT:   %impl_witness.1431bd.2: <witness> = impl_witness (), @impl(%TB) [symbolic]
-// CHECK:STDOUT:   %C.facet: %C.type = facet_value %TB.as_type, %impl_witness.1431bd.2 [symbolic]
-// CHECK:STDOUT:   %FC.specific_fn: <specific function> = specific_function %FC, @FC(%C.facet) [symbolic]
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: file {
-// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
-// CHECK:STDOUT:     .B = %B.decl
-// CHECK:STDOUT:     .C = %C.decl
-// CHECK:STDOUT:     .FC = %FC.decl
-// CHECK:STDOUT:     .FB = %FB.decl
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %B.decl: type = interface_decl @B [concrete = constants.%B.type] {} {}
-// CHECK:STDOUT:   %C.decl: type = interface_decl @C [concrete = constants.%C.type] {} {}
-// CHECK:STDOUT:   impl_decl @impl [concrete] {
-// CHECK:STDOUT:     %T.patt.loc6_14.1: %B.type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc6_14.2 (constants.%T.patt)]
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref: %B.type = name_ref T, %T.loc6_14.1 [symbolic = %T.loc6_14.2 (constants.%T)]
-// CHECK:STDOUT:     %T.as_type.loc6_21.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc6_21.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc6: type = converted %T.ref, %T.as_type.loc6_21.1 [symbolic = %T.as_type.loc6_21.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C.type]
-// CHECK:STDOUT:     %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B.type]
-// CHECK:STDOUT:     %T.loc6_14.1: %B.type = bind_symbolic_name T, 0 [symbolic = %T.loc6_14.2 (constants.%T)]
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (), @impl(constants.%T) [symbolic = @impl.%impl_witness (constants.%impl_witness.1431bd.1)]
-// CHECK:STDOUT:   %FC.decl: %FC.type = fn_decl @FC [concrete = constants.%FC] {
-// CHECK:STDOUT:     %TC.patt.loc8_7.1: %C.type = symbolic_binding_pattern TC, 0 [symbolic = %TC.patt.loc8_7.2 (constants.%TC.patt)]
-// CHECK:STDOUT:     %xc.patt: @FC.%TC.as_type.loc8_19.2 (%TC.as_type) = binding_pattern xc
-// CHECK:STDOUT:     %xc.param_patt: @FC.%TC.as_type.loc8_19.2 (%TC.as_type) = value_param_pattern %xc.patt, call_param0
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C.type]
-// CHECK:STDOUT:     %TC.loc8_7.1: %C.type = bind_symbolic_name TC, 0 [symbolic = %TC.loc8_7.2 (constants.%TC)]
-// CHECK:STDOUT:     %xc.param: @FC.%TC.as_type.loc8_19.2 (%TC.as_type) = value_param call_param0
-// CHECK:STDOUT:     %.loc8_19.1: type = splice_block %.loc8_19.2 [symbolic = %TC.as_type.loc8_19.2 (constants.%TC.as_type)] {
-// CHECK:STDOUT:       %TC.ref: %C.type = name_ref TC, %TC.loc8_7.1 [symbolic = %TC.loc8_7.2 (constants.%TC)]
-// CHECK:STDOUT:       %TC.as_type.loc8_19.1: type = facet_access_type %TC.ref [symbolic = %TC.as_type.loc8_19.2 (constants.%TC.as_type)]
-// CHECK:STDOUT:       %.loc8_19.2: type = converted %TC.ref, %TC.as_type.loc8_19.1 [symbolic = %TC.as_type.loc8_19.2 (constants.%TC.as_type)]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %xc: @FC.%TC.as_type.loc8_19.2 (%TC.as_type) = bind_name xc, %xc.param
-// CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FB.decl: %FB.type = fn_decl @FB [concrete = constants.%FB] {
-// CHECK:STDOUT:     %TB.patt.loc10_7.1: %B.type = symbolic_binding_pattern TB, 0 [symbolic = %TB.patt.loc10_7.2 (constants.%TB.patt)]
-// CHECK:STDOUT:     %xb.patt: @FB.%TB.as_type.loc10_19.2 (%TB.as_type) = binding_pattern xb
-// CHECK:STDOUT:     %xb.param_patt: @FB.%TB.as_type.loc10_19.2 (%TB.as_type) = value_param_pattern %xb.patt, call_param0
-// CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B.type]
-// CHECK:STDOUT:     %TB.loc10_7.1: %B.type = bind_symbolic_name TB, 0 [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:     %xb.param: @FB.%TB.as_type.loc10_19.2 (%TB.as_type) = value_param call_param0
-// CHECK:STDOUT:     %.loc10_19.1: type = splice_block %.loc10_19.2 [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)] {
-// CHECK:STDOUT:       %TB.ref: %B.type = name_ref TB, %TB.loc10_7.1 [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:       %TB.as_type.loc10_19.1: type = facet_access_type %TB.ref [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:       %.loc10_19.2: type = converted %TB.ref, %TB.as_type.loc10_19.1 [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:     }
-// CHECK:STDOUT:     %xb: @FB.%TB.as_type.loc10_19.2 (%TB.as_type) = bind_name xb, %xb.param
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: interface @B {
-// CHECK:STDOUT:   %Self: %B.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.783]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = %Self
-// CHECK:STDOUT:   witness = ()
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: interface @C {
-// CHECK:STDOUT:   %Self: %C.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.02e]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = %Self
-// CHECK:STDOUT:   witness = ()
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @impl(%T.loc6_14.1: %B.type) {
-// CHECK:STDOUT:   %T.loc6_14.2: %B.type = bind_symbolic_name T, 0 [symbolic = %T.loc6_14.2 (constants.%T)]
-// CHECK:STDOUT:   %T.patt.loc6_14.2: %B.type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc6_14.2 (constants.%T.patt)]
-// CHECK:STDOUT:   %T.as_type.loc6_21.2: type = facet_access_type %T.loc6_14.2 [symbolic = %T.as_type.loc6_21.2 (constants.%T.as_type)]
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (), @impl(%T.loc6_14.2) [symbolic = %impl_witness (constants.%impl_witness.1431bd.1)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:
-// CHECK:STDOUT:   impl: %.loc6 as %C.ref {
-// CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = file.%impl_witness
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @FC(%TC.loc8_7.1: %C.type) {
-// CHECK:STDOUT:   %TC.loc8_7.2: %C.type = bind_symbolic_name TC, 0 [symbolic = %TC.loc8_7.2 (constants.%TC)]
-// CHECK:STDOUT:   %TC.patt.loc8_7.2: %C.type = symbolic_binding_pattern TC, 0 [symbolic = %TC.patt.loc8_7.2 (constants.%TC.patt)]
-// CHECK:STDOUT:   %TC.as_type.loc8_19.2: type = facet_access_type %TC.loc8_7.2 [symbolic = %TC.as_type.loc8_19.2 (constants.%TC.as_type)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @FC.%TC.as_type.loc8_19.2 (%TC.as_type) [symbolic = %require_complete (constants.%require_complete.8ca)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%TC.patt.loc8_7.1: %C.type](%xc.param_patt: @FC.%TC.as_type.loc8_19.2 (%TC.as_type)) {
-// CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     return
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @FB(%TB.loc10_7.1: %B.type) {
-// CHECK:STDOUT:   %TB.loc10_7.2: %B.type = bind_symbolic_name TB, 0 [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:   %TB.patt.loc10_7.2: %B.type = symbolic_binding_pattern TB, 0 [symbolic = %TB.patt.loc10_7.2 (constants.%TB.patt)]
-// CHECK:STDOUT:   %TB.as_type.loc10_19.2: type = facet_access_type %TB.loc10_7.2 [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @FB.%TB.as_type.loc10_19.2 (%TB.as_type) [symbolic = %require_complete (constants.%require_complete.e08)]
-// CHECK:STDOUT:   %impl_witness: <witness> = impl_witness (), @impl(%TB.loc10_7.2) [symbolic = %impl_witness (constants.%impl_witness.1431bd.2)]
-// CHECK:STDOUT:   %C.facet.loc11_8.3: %C.type = facet_value %TB.as_type.loc10_19.2, %impl_witness [symbolic = %C.facet.loc11_8.3 (constants.%C.facet)]
-// CHECK:STDOUT:   %FC.specific_fn.loc11_3.2: <specific function> = specific_function constants.%FC, @FC(%C.facet.loc11_8.3) [symbolic = %FC.specific_fn.loc11_3.2 (constants.%FC.specific_fn)]
-// CHECK:STDOUT:
-// CHECK:STDOUT:   fn[%TB.patt.loc10_7.1: %B.type](%xb.param_patt: @FB.%TB.as_type.loc10_19.2 (%TB.as_type)) {
-// CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %FC.ref: %FC.type = name_ref FC, file.%FC.decl [concrete = constants.%FC]
-// CHECK:STDOUT:     %xb.ref: @FB.%TB.as_type.loc10_19.2 (%TB.as_type) = name_ref xb, %xb
-// CHECK:STDOUT:     %TB.as_type.loc11_8.1: type = facet_access_type constants.%TB [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:     %.loc11_8.1: type = converted constants.%TB, %TB.as_type.loc11_8.1 [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:     %.loc11_8.2: %B.type = converted %.loc11_8.1, constants.%TB [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:     %.loc11_8.3: %B.type = converted constants.%TB.as_type, constants.%TB [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:     %C.facet.loc11_8.1: %C.type = facet_value constants.%TB.as_type, constants.%impl_witness.1431bd.2 [symbolic = %C.facet.loc11_8.3 (constants.%C.facet)]
-// CHECK:STDOUT:     %.loc11_8.4: %C.type = converted constants.%TB.as_type, %C.facet.loc11_8.1 [symbolic = %C.facet.loc11_8.3 (constants.%C.facet)]
-// CHECK:STDOUT:     %TB.as_type.loc11_8.2: type = facet_access_type constants.%TB [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:     %.loc11_8.5: type = converted constants.%TB, %TB.as_type.loc11_8.2 [symbolic = %TB.as_type.loc10_19.2 (constants.%TB.as_type)]
-// CHECK:STDOUT:     %.loc11_8.6: %B.type = converted %.loc11_8.5, constants.%TB [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:     %.loc11_8.7: %B.type = converted constants.%TB.as_type, constants.%TB [symbolic = %TB.loc10_7.2 (constants.%TB)]
-// CHECK:STDOUT:     %C.facet.loc11_8.2: %C.type = facet_value constants.%TB.as_type, constants.%impl_witness.1431bd.2 [symbolic = %C.facet.loc11_8.3 (constants.%C.facet)]
-// CHECK:STDOUT:     %.loc11_8.8: %C.type = converted constants.%TB.as_type, %C.facet.loc11_8.2 [symbolic = %C.facet.loc11_8.3 (constants.%C.facet)]
-// CHECK:STDOUT:     %FC.specific_fn.loc11_3.1: <specific function> = specific_function %FC.ref, @FC(constants.%C.facet) [symbolic = %FC.specific_fn.loc11_3.2 (constants.%FC.specific_fn)]
-// CHECK:STDOUT:     %FC.call: init %empty_tuple.type = call %FC.specific_fn.loc11_3.1(%xb.ref)
-// CHECK:STDOUT:     return
-// CHECK:STDOUT:   }
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(constants.%T) {
-// CHECK:STDOUT:   %T.loc6_14.2 => constants.%T
-// CHECK:STDOUT:   %T.patt.loc6_14.2 => constants.%T
-// CHECK:STDOUT:   %T.as_type.loc6_21.2 => constants.%T.as_type
-// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.1431bd.1
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(%T.loc6_14.2) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @FC(constants.%TC) {
-// CHECK:STDOUT:   %TC.loc8_7.2 => constants.%TC
-// CHECK:STDOUT:   %TC.patt.loc8_7.2 => constants.%TC
-// CHECK:STDOUT:   %TC.as_type.loc8_19.2 => constants.%TC.as_type
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @FB(constants.%TB) {
-// CHECK:STDOUT:   %TB.loc10_7.2 => constants.%TB
-// CHECK:STDOUT:   %TB.patt.loc10_7.2 => constants.%TB
-// CHECK:STDOUT:   %TB.as_type.loc10_19.2 => constants.%TB.as_type
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(constants.%TB) {
-// CHECK:STDOUT:   %T.loc6_14.2 => constants.%TB
-// CHECK:STDOUT:   %T.patt.loc6_14.2 => constants.%TB
-// CHECK:STDOUT:   %T.as_type.loc6_21.2 => constants.%TB.as_type
-// CHECK:STDOUT:   %impl_witness => constants.%impl_witness.1431bd.2
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @FC(constants.%C.facet) {
-// CHECK:STDOUT:   %TC.loc8_7.2 => constants.%C.facet
-// CHECK:STDOUT:   %TC.patt.loc8_7.2 => constants.%C.facet
-// CHECK:STDOUT:   %TC.as_type.loc8_19.2 => constants.%TB.as_type
-// CHECK:STDOUT:
-// CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.e08
-// CHECK:STDOUT: }
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @impl(@FB.%TB.loc10_7.2) {}
-// CHECK:STDOUT:
-// CHECK:STDOUT: specific @FC(@FB.%C.facet.loc11_8.3) {}
-// CHECK:STDOUT:

toolchain/check/testdata/impl/lookup/no_prelude/subtyping.carbon

@@ -8,7 +8,9 @@
 // TIP: To dump output, run:
 // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/lookup/no_prelude/subtyping.carbon
 
-// --- fail_todo_equivalent.carbon
+// This is testing `FindWitnessInFacet` from impl_lookup.cpp
+
+// --- equivalent.carbon
 library "[[@TEST_NAME]]";
 
 interface A {}
@@ -16,17 +18,10 @@ interface A {}
 fn TakesA[T:! A](x: T) {}
 
 fn WithExtraWhere[U:! A where .Self impls type](y: U) {
-  // CHECK:STDERR: fail_todo_equivalent.carbon:[[@LINE+7]]:3: error: `Core.ImplicitAs` implicitly referenced here, but package `Core` not found [CoreNotFound]
-  // CHECK:STDERR:   TakesA(y);
-  // CHECK:STDERR:   ^~~~~~~~~
-  // CHECK:STDERR: fail_todo_equivalent.carbon:[[@LINE-6]]:1: note: while deducing parameters of generic declared here [DeductionGenericHere]
-  // CHECK:STDERR: fn TakesA[T:! A](x: T) {}
-  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~
-  // CHECK:STDERR:
   TakesA(y);
 }
 
-// CHECK:STDOUT: --- fail_todo_equivalent.carbon
+// CHECK:STDOUT: --- equivalent.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
@@ -35,6 +30,7 @@ fn WithExtraWhere[U:! A where .Self impls type](y: U) {
 // CHECK:STDOUT:   %T.patt: %A.type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
 // CHECK:STDOUT:   %TakesA.type: type = fn_type @TakesA [concrete]
+// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TakesA: %TakesA.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.cf4: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %.Self: %A.type = bind_symbolic_name .Self [symbolic_self]
@@ -46,6 +42,9 @@ fn WithExtraWhere[U:! A where .Self impls type](y: U) {
 // CHECK:STDOUT:   %WithExtraWhere.type: type = fn_type @WithExtraWhere [concrete]
 // CHECK:STDOUT:   %WithExtraWhere: %WithExtraWhere.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.732: <witness> = require_complete_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %U.as_wit: <witness> = facet_access_witness %U [symbolic]
+// CHECK:STDOUT:   %A.facet: %A.type = facet_value %U.as_type, %U.as_wit [symbolic]
+// CHECK:STDOUT:   %TakesA.specific_fn: <specific function> = specific_function %TakesA, @TakesA(%A.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -125,12 +124,22 @@ fn WithExtraWhere[U:! A where .Self impls type](y: U) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type @WithExtraWhere.%U.as_type.loc7_52.2 (%U.as_type) [symbolic = %require_complete (constants.%require_complete.732)]
+// CHECK:STDOUT:   %U.as_wit.loc8_11.3: <witness> = facet_access_witness %U.loc7_19.2 [symbolic = %U.as_wit.loc8_11.3 (constants.%U.as_wit)]
+// CHECK:STDOUT:   %A.facet.loc8_11.3: %A.type = facet_value %U.as_type.loc7_52.2, %U.as_wit.loc8_11.3 [symbolic = %A.facet.loc8_11.3 (constants.%A.facet)]
+// CHECK:STDOUT:   %TakesA.specific_fn.loc8_3.2: <specific function> = specific_function constants.%TakesA, @TakesA(%A.facet.loc8_11.3) [symbolic = %TakesA.specific_fn.loc8_3.2 (constants.%TakesA.specific_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn[%U.patt.loc7_19.1: %A_where.type](%y.param_patt: @WithExtraWhere.%U.as_type.loc7_52.2 (%U.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %TakesA.ref: %TakesA.type = name_ref TakesA, file.%TakesA.decl [concrete = constants.%TakesA]
 // CHECK:STDOUT:     %y.ref: @WithExtraWhere.%U.as_type.loc7_52.2 (%U.as_type) = name_ref y, %y
-// CHECK:STDOUT:     %.loc15: %A.type = converted constants.%U.as_type, <error> [concrete = <error>]
+// CHECK:STDOUT:     %U.as_wit.loc8_11.1: <witness> = facet_access_witness constants.%U [symbolic = %U.as_wit.loc8_11.3 (constants.%U.as_wit)]
+// CHECK:STDOUT:     %A.facet.loc8_11.1: %A.type = facet_value constants.%U.as_type, %U.as_wit.loc8_11.1 [symbolic = %A.facet.loc8_11.3 (constants.%A.facet)]
+// CHECK:STDOUT:     %.loc8_11.1: %A.type = converted constants.%U.as_type, %A.facet.loc8_11.1 [symbolic = %A.facet.loc8_11.3 (constants.%A.facet)]
+// CHECK:STDOUT:     %U.as_wit.loc8_11.2: <witness> = facet_access_witness constants.%U [symbolic = %U.as_wit.loc8_11.3 (constants.%U.as_wit)]
+// CHECK:STDOUT:     %A.facet.loc8_11.2: %A.type = facet_value constants.%U.as_type, %U.as_wit.loc8_11.2 [symbolic = %A.facet.loc8_11.3 (constants.%A.facet)]
+// CHECK:STDOUT:     %.loc8_11.2: %A.type = converted constants.%U.as_type, %A.facet.loc8_11.2 [symbolic = %A.facet.loc8_11.3 (constants.%A.facet)]
+// CHECK:STDOUT:     %TakesA.specific_fn.loc8_3.1: <specific function> = specific_function %TakesA.ref, @TakesA(constants.%A.facet) [symbolic = %TakesA.specific_fn.loc8_3.2 (constants.%TakesA.specific_fn)]
+// CHECK:STDOUT:     %TakesA.call: init %empty_tuple.type = call %TakesA.specific_fn.loc8_3.1(%y.ref)
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -147,3 +156,14 @@ fn WithExtraWhere[U:! A where .Self impls type](y: U) {
 // CHECK:STDOUT:   %U.as_type.loc7_52.2 => constants.%U.as_type
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
+// CHECK:STDOUT: specific @TakesA(constants.%A.facet) {
+// CHECK:STDOUT:   %T.loc5_11.2 => constants.%A.facet
+// CHECK:STDOUT:   %T.patt.loc5_11.2 => constants.%A.facet
+// CHECK:STDOUT:   %T.as_type.loc5_21.2 => constants.%U.as_type
+// CHECK:STDOUT:
+// CHECK:STDOUT: !definition:
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.732
+// CHECK:STDOUT: }
+// CHECK:STDOUT:
+// CHECK:STDOUT: specific @TakesA(@WithExtraWhere.%A.facet.loc8_11.3) {}
+// CHECK:STDOUT: