[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 49 matching lines @@
                                           LanguageMode language_mode);
 
   // Store properties. The value to be stored should be in the accumulator.
   BytecodeArrayBuilder& StoreNamedProperty(Register object, Register name,
                                            int feedback_slot,
                                            LanguageMode language_mode);
   BytecodeArrayBuilder& StoreKeyedProperty(Register object, Register key,
                                            int feedback_slot,
                                            LanguageMode language_mode);
 
+  // Call a JS function. The JSFunction or Callable to be called should be in
+  // |callable|, the receiver should be in |receiver| and all subsequent
+  // arguments should be in registers <receiver + 1> to
+  // <receiver + 1 + arg_count>.
+  BytecodeArrayBuilder& Call(Register callable, Register receiver,
+                             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_