[es6] [interpreter] Add tail calls support to Ignition.

src/interpreter/interpreter.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_INTERPRETER_INTERPRETER_H_
 #define V8_INTERPRETER_INTERPRETER_H_
 
 // Clients of this interface shouldn't depend on lots of interpreter internals.
 // Do not include anything from src/interpreter other than
 // src/interpreter/bytecodes.h here!
@@ skipping 68 matching lines @@
   // Generates code to perform a keyed property load via |ic|.
   void DoKeyedLoadIC(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to perform a namedproperty store via |ic|.
   void DoStoreIC(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to perform a keyed property store via |ic|.
   void DoKeyedStoreIC(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to perform a JS call.
-  void DoJSCall(InterpreterAssembler* assembler);
+  void DoJSCall(InterpreterAssembler* assembler, TailCallMode tail_call_mode);
 
   // Generates code to perform a runtime call.
   void DoCallRuntimeCommon(InterpreterAssembler* assembler);
 
   // Generates code to perform a runtime call returning a pair.
   void DoCallRuntimeForPairCommon(InterpreterAssembler* assembler);
 
   // Generates code to perform a JS runtime call.
   void DoCallJSRuntimeCommon(InterpreterAssembler* assembler);
 
@@ skipping 24 matching lines @@
   Object* dispatch_table_[kDispatchTableSize];
 
   DISALLOW_COPY_AND_ASSIGN(Interpreter);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_INTERPRETER_H_