Ship ES2015 sloppy-mode const semantics

test/cctest/interpreter/test-bytecode-generator.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/v8.h"
 
 #include "src/compiler.h"
 #include "src/interpreter/bytecode-array-iterator.h"
 #include "src/interpreter/bytecode-generator.h"
 #include "src/interpreter/interpreter.h"
@@ skipping 11 matching lines @@
   static const int kLastParamIndex =
       -InterpreterFrameConstants::kLastParamFromRegisterPointer / kPointerSize;
 
   BytecodeGeneratorHelper() {
     i::FLAG_ignition = true;
     i::FLAG_ignition_fake_try_catch = true;
     i::FLAG_ignition_fallback_on_eval_and_catch = false;
     i::FLAG_ignition_filter = StrDup(kFunctionName);
     i::FLAG_always_opt = false;
     i::FLAG_allow_natives_syntax = true;
+    i::FLAG_legacy_const = true;
     CcTest::i_isolate()->interpreter()->Initialize();
   }
 
   Isolate* isolate() { return CcTest::i_isolate(); }
   Factory* factory() { return CcTest::i_isolate()->factory(); }
 
   Handle<BytecodeArray> MakeTopLevelBytecode(const char* source) {
     const char* old_ignition_filter = i::FLAG_ignition_filter;
     i::FLAG_ignition_filter = "*";
     Local<v8::Script> script = v8_compile(source);
@@ skipping 6224 matching lines @@
                          std::string(function_epilogue);
     Handle<BytecodeArray> bytecode_array =
         helper.MakeBytecode(script.c_str(), "t", "f");
     CheckBytecodeArrayEqual(snippets[i], bytecode_array);
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8