[es6] Perform the IsConstructor test in GetSuperConstructor.

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 "src/ast/ast.h"
 #include "src/base/compiler-specific.h"
 #include "src/globals.h"
@@ skipping 240 matching lines @@
                                         int feedback_slot);
 
   // Count Operators (value stored in accumulator).
   // Type feedback will be recorded in the |feedback_slot|
   BytecodeArrayBuilder& CountOperation(Token::Value op, int feedback_slot);
 
   // Unary Operators.
   BytecodeArrayBuilder& LogicalNot();
   BytecodeArrayBuilder& TypeOf();
 
+  // Expects a heap object in the accumulator. Returns its super constructor in
+  // the register |out| if it passes the IsConstructor test. Otherwise, it
+  // throws a TypeError exception.
+  BytecodeArrayBuilder& GetSuperConstructor(Register out);
+
   // Deletes property from an object. This expects that accumulator contains
   // the key to be deleted and the register contains a reference to the object.
   BytecodeArrayBuilder& Delete(Register object, LanguageMode language_mode);
 
   // Tests.
   BytecodeArrayBuilder& CompareOperation(Token::Value op, Register reg,
                                          int feedback_slot = kNoFeedbackSlot);
 
   // Converts accumulator and stores result in register |out|.
   BytecodeArrayBuilder& ConvertAccumulatorToObject(Register out);
@@ skipping 157 matching lines @@
   static int const kNoFeedbackSlot = 0;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeArrayBuilder);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_