[es6] Reintroduce the instanceof operator in the backends.

src/full-codegen/mips/full-codegen-mips.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_MIPS
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 3132 matching lines @@
 void FullCodeGenerator::EmitGetSuperConstructor(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(1, args->length());
   VisitForAccumulatorValue(args->at(0));
   __ AssertFunction(v0);
   __ lw(v0, FieldMemOperand(v0, HeapObject::kMapOffset));
   __ lw(v0, FieldMemOperand(v0, Map::kPrototypeOffset));
   context()->Plug(v0);
 }
 
-void FullCodeGenerator::EmitGetOrdinaryHasInstance(CallRuntime* expr) {
-  DCHECK_EQ(0, expr->arguments()->length());
-  __ LoadNativeContextSlot(Context::ORDINARY_HAS_INSTANCE_INDEX, v0);
-  context()->Plug(v0);
-}
-
 void FullCodeGenerator::EmitDebugIsActive(CallRuntime* expr) {
   DCHECK(expr->arguments()->length() == 0);
   ExternalReference debug_is_active =
       ExternalReference::debug_is_active_address(isolate());
   __ li(at, Operand(debug_is_active));
   __ lb(v0, MemOperand(at));
   __ SmiTag(v0);
   context()->Plug(v0);
 }
 
@@ skipping 775 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OnStackReplacement()->entry()));
   return ON_STACK_REPLACEMENT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS