[interpreter] Add Interpreter{Entry,Exit}Trampoline builtins.

src/compiler/interpreter-assembler.h

 // Copyright 2015 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_COMPILER_INTERPRETER_CODEGEN_H_
 #define V8_COMPILER_INTERPRETER_CODEGEN_H_
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/allocation.h"
 #include "src/base/smart-pointers.h"
 #include "src/frames.h"
 #include "src/interpreter/bytecodes.h"
+#include "src/unique.h"
 
 namespace v8 {
 namespace internal {
 
 class Isolate;
 class Zone;
 
 namespace compiler {
 
 class CallDescriptor;
 class CommonOperatorBuilder;
 class Graph;
 class MachineOperatorBuilder;
 class Node;
 class Operator;
 class RawMachineAssembler;
 class Schedule;
 
 class InterpreterAssembler {
  public:
   InterpreterAssembler(Isolate* isolate, Zone* zone,
                        interpreter::Bytecode bytecode);
   virtual ~InterpreterAssembler();
 
   Handle<Code> GenerateCode();
 
   // Constants.
   Node* Int32Constant(int value);
   Node* NumberConstant(double value);
+  Node* HeapConstant(Unique<HeapObject> object);
 
   // Returns the bytecode argument |index| for the current bytecode.
   Node* BytecodeArg(int index);
 
   // Loads from and stores to the interpreter register file.
   Node* LoadRegister(int index);
   Node* LoadRegister(Node* index);
   Node* StoreRegister(Node* value, int index);
   Node* StoreRegister(Node* value, Node* index);
 
+  // Returns from the function.
+  void Return();
+
   // Dispatch to the bytecode.
   void Dispatch();
 
  protected:
   static const int kFirstRegisterOffsetFromFp =
       -kPointerSize - StandardFrameConstants::kFixedFrameSizeFromFp;
 
   // TODO(rmcilroy): Increase this when required.
   static const int kMaxRegisterIndex = 255;
 
@@ skipping 37 matching lines @@
   bool code_generated_;
 
   DISALLOW_COPY_AND_ASSIGN(InterpreterAssembler);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INTERPRETER_CODEGEN_H_