[es6] Faster implementation of OrdinaryHasInstance.

src/mips64/code-stubs-mips64.cc

 // Copyright 2012 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.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 1556 matching lines @@
   __ bind(&fast_runtime_fallback);
   __ Push(object, function_prototype);
   // Invalidate the instanceof cache.
   DCHECK(Smi::FromInt(0) == 0);
   __ StoreRoot(zero_reg, Heap::kInstanceofCacheFunctionRootIndex);
   __ TailCallRuntime(Runtime::kHasInPrototypeChain);
 
   // Slow-case: Call the %InstanceOf runtime function.
   __ bind(&slow_case);
   __ Push(object, function);
-  __ TailCallRuntime(Runtime::kInstanceOf);
+  __ TailCallRuntime(is_es6_instanceof() ? Runtime::kOrdinaryHasInstance
+                                         : Runtime::kInstanceOf);
 }
 
 
 void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
   Label miss;
   Register receiver = LoadDescriptor::ReceiverRegister();
   // Ensure that the vector and slot registers won't be clobbered before
   // calling the miss handler.
   DCHECK(!AreAliased(a4, a5, LoadWithVectorDescriptor::VectorRegister(),
                      LoadWithVectorDescriptor::SlotRegister()));
@@ skipping 4203 matching lines @@
                            return_value_operand, NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64