[es6] Correct parsing of regular expression literal flags.

src/interpreter/bytecode-array-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_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 #define V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 
 #include <vector>
 
 #include "src/ast.h"
@@ skipping 105 matching lines @@
                                            int feedback_slot,
                                            LanguageMode language_mode);
 
   // Create a new closure for the SharedFunctionInfo in the accumulator.
   BytecodeArrayBuilder& CreateClosure(PretenureFlag tenured);
 
   // Create a new arguments object in the accumulator.
   BytecodeArrayBuilder& CreateArguments(CreateArgumentsType type);
 
   // Literals creation.  Constant elements should be in the accumulator.
-  BytecodeArrayBuilder& CreateRegExpLiteral(int literal_index, Register flags);
+  BytecodeArrayBuilder& CreateRegExpLiteral(int literal_index, int flags);
   BytecodeArrayBuilder& CreateArrayLiteral(int literal_index, int flags);
   BytecodeArrayBuilder& CreateObjectLiteral(int literal_index, int flags);
 
   // Push the context in accumulator as the new context, and store in register
   // |context|.
   BytecodeArrayBuilder& PushContext(Register context);
 
   // Pop the current context and replace with |context|.
   BytecodeArrayBuilder& PopContext(Register context);
 
@@ skipping 219 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TemporaryRegisterScope);
 };
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_