[KeyedLoadIC] Support Smi "handlers" for simple field loads

src/full-codegen/full-codegen.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/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopeinfo.h"
@@ skipping 1012 matching lines @@
   PushOperand(key->value());
   CallRuntimeWithOperands(Runtime::kLoadFromSuper);
 }
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetExpressionPosition(prop);
   Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code();
   __ Move(LoadDescriptor::SlotRegister(),
           SmiFromSlot(prop->PropertyFeedbackSlot()));
   CallIC(ic);
+  if (FLAG_tf_load_ic_stub) RestoreContext();
 }
 
 void FullCodeGenerator::EmitKeyedSuperPropertyLoad(Property* prop) {
   // Stack: receiver, home_object, key.
   SetExpressionPosition(prop);
   CallRuntimeWithOperands(Runtime::kLoadKeyedFromSuper);
 }
 
 void FullCodeGenerator::EmitPropertyKey(ObjectLiteralProperty* property,
                                         BailoutId bailout_id) {
@@ skipping 887 matching lines @@
   return var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8