[Interpreter] Add support for JS calls.

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 38 matching lines @@
   // Register-accumulator transfers.
   BytecodeArrayBuilder& LoadAccumulatorWithRegister(Register reg);
   BytecodeArrayBuilder& StoreAccumulatorInRegister(Register reg);
 
   // Load properties. The property name should be in the accumulator.
   BytecodeArrayBuilder& LoadNamedProperty(Register object, int feedback_slot,
                                           LanguageMode language_mode);
   BytecodeArrayBuilder& LoadKeyedProperty(Register object, int feedback_slot,
                                           LanguageMode language_mode);
 
+  // Call JS function. The function to be called should be in the accumulator
+  // and all arguments (including the receiver) should be in registers
+  // <first_arg> to <first_arg + count>.
+  BytecodeArrayBuilder& CallJS(Register first_arg, size_t arg_count);
+
   // Operators.
   BytecodeArrayBuilder& BinaryOperation(Token::Value binop, Register reg);
 
   // Flow Control.
   BytecodeArrayBuilder& Return();
 
  private:
   static Bytecode BytecodeForBinaryOperation(Token::Value op);
   static bool FitsInByteOperand(int value);
   static bool FitsInByteOperand(size_t value);
@@ skipping 45 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TemporaryRegisterScope);
 };
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_