Represent implicit 'this' binding by 'super' in AST.

src/full-codegen.h

 // 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.
 
 #ifndef V8_FULL_CODEGEN_H_
 #define V8_FULL_CODEGEN_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 626 matching lines @@
   }
 
   // Adds the [[HomeObject]] to |initializer| if it is a FunctionLiteral.
   // The value of the initializer is expected to be at the top of the stack.
   // |offset| is the offset in the stack where the home object can be found.
   void EmitSetHomeObjectIfNeeded(
       Expression* initializer, int offset,
       FeedbackVectorICSlot slot = FeedbackVectorICSlot::Invalid());
 
   void EmitLoadSuperConstructor(SuperCallReference* super_call_ref);
-  void EmitInitializeThisAfterSuper(
-      SuperCallReference* super_call_ref,
-      FeedbackVectorICSlot slot = FeedbackVectorICSlot::Invalid());
 
   void CallIC(Handle<Code> code,
               TypeFeedbackId id = TypeFeedbackId::None());
 
   // Inside typeof reference errors are never thrown.
   void CallLoadIC(TypeofMode typeof_mode, LanguageMode language_mode = SLOPPY,
                   TypeFeedbackId id = TypeFeedbackId::None());
   void CallStoreIC(TypeFeedbackId id = TypeFeedbackId::None());
 
   void SetFunctionPosition(FunctionLiteral* fun);
@@ skipping 424 matching lines @@
 
   Address start_;
   Address instruction_start_;
   uint32_t length_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_