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

src/compiler/bytecode-graph-builder.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_BYTECODE_GRAPH_BUILDER_H_
 #define V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_
 
 #include "src/compiler.h"
 #include "src/compiler/bytecode-branch-analysis.h"
 #include "src/compiler/js-graph.h"
@@ skipping 105 matching lines @@
   void BuildCreateObjectLiteral();
   void BuildCreateArguments(CreateArgumentsType type);
   void BuildLoadGlobal(TypeofMode typeof_mode);
   void BuildStoreGlobal(LanguageMode language_mode);
   void BuildNamedLoad();
   void BuildKeyedLoad();
   void BuildNamedStore(LanguageMode language_mode);
   void BuildKeyedStore(LanguageMode language_mode);
   void BuildLdaLookupSlot(TypeofMode typeof_mode);
   void BuildStaLookupSlot(LanguageMode language_mode);
-  void BuildCall();
+  void BuildCall(TailCallMode tail_call_mode);
   void BuildCallJSRuntime();
   void BuildCallRuntime();
   void BuildCallRuntimeForPair();
   void BuildCallConstruct();
   void BuildThrow();
   void BuildBinaryOp(const Operator* op);
   void BuildCompareOp(const Operator* op);
   void BuildDelete(LanguageMode language_mode);
   void BuildCastOperator(const Operator* op);
   void BuildForInPrepare();
@@ skipping 115 matching lines @@
   ZoneVector<Node*> exit_controls_;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeGraphBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_