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

src/interpreter/bytecodes.cc

 // 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.
 
 #include "src/interpreter/bytecodes.h"
 
 #include "src/frames.h"
 #include "src/interpreter/bytecode-traits.h"
 
 namespace v8 {
@@ skipping 244 matching lines @@
 
 // static
 bool Bytecodes::IsJump(Bytecode bytecode) {
   return IsJumpImmediate(bytecode) || IsJumpConstant(bytecode) ||
          IsJumpConstantWide(bytecode);
 }
 
 
 // static
 bool Bytecodes::IsCallOrNew(Bytecode bytecode) {
-  return bytecode == Bytecode::kCall || bytecode == Bytecode::kNew ||
-         bytecode == Bytecode::kCallWide || bytecode == Bytecode::kNewWide;
+  return bytecode == Bytecode::kCall || bytecode == Bytecode::kTailCall ||
+         bytecode == Bytecode::kNew || bytecode == Bytecode::kCallWide ||
+         bytecode == Bytecode::kTailCallWide || bytecode == Bytecode::kNewWide;
 }
 
 // static
 bool Bytecodes::IsJumpOrReturn(Bytecode bytecode) {
   return bytecode == Bytecode::kReturn || IsJump(bytecode);
 }
 
 // static
 bool Bytecodes::IsIndexOperandType(OperandType operand_type) {
   return operand_type == OperandType::kIdx8 ||
@@ skipping 322 matching lines @@
   } else {
     std::ostringstream s;
     s << "r" << index();
     return s.str();
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8