[stubs] Port LoadFieldStub to TF

src/code-stubs-hydrogen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/code-stubs.h"
 
 #include <memory>
 
 #include "src/bailout-reason.h"
 #include "src/code-factory.h"
@@ skipping 378 matching lines @@
       (!FLAG_unbox_double_fields || !index.is_inobject())) {
     // Load the heap number.
     object = Add<HLoadNamedField>(
         object, nullptr, access.WithRepresentation(Representation::Tagged()));
     // Load the double value from it.
     access = HObjectAccess::ForHeapNumberValue();
   }
   return Add<HLoadNamedField>(object, nullptr, access);
 }
 
-
-template<>
-HValue* CodeStubGraphBuilder<LoadFieldStub>::BuildCodeStub() {
-  return BuildLoadNamedField(GetParameter(Descriptor::kReceiver),
-                             casted_stub()->index());
-}
-
-
-Handle<Code> LoadFieldStub::GenerateCode() {
-  return DoGenerateCode(this);
-}
-
 void CodeStubGraphBuilderBase::BuildStoreNamedField(
     HValue* object, HValue* value, FieldIndex index,
     Representation representation, bool transition_to_field) {
   DCHECK(!index.is_double() || representation.IsDouble());
   int offset = index.offset();
   HObjectAccess access =
       index.is_inobject()
           ? HObjectAccess::ForObservableJSObjectOffset(offset, representation)
           : HObjectAccess::ForBackingStoreOffset(offset, representation);
 
@@ skipping 338 matching lines @@
   if_true.Return(graph()->GetConstantTrue());
   if_true.Else();
   if_true.End();
   return graph()->GetConstantFalse();
 }
 
 Handle<Code> ToBooleanICStub::GenerateCode() { return DoGenerateCode(this); }
 
 }  // namespace internal
 }  // namespace v8