Correctify instanceof and make it optimizable.

src/arm64/interface-descriptors-arm64.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_ARM64
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 23 matching lines @@
 const Register StoreTransitionDescriptor::MapRegister() { return x3; }
 
 
 const Register LoadGlobalViaContextDescriptor::SlotRegister() { return x2; }
 
 
 const Register StoreGlobalViaContextDescriptor::SlotRegister() { return x2; }
 const Register StoreGlobalViaContextDescriptor::ValueRegister() { return x0; }
 
 
-const Register InstanceofDescriptor::left() {
-  // Object to check (instanceof lhs).
-  return x11;
-}
-
-
-const Register InstanceofDescriptor::right() {
-  // Constructor function (instanceof rhs).
-  return x10;
-}
+const Register InstanceOfDescriptor::LeftRegister() { return x1; }
+const Register InstanceOfDescriptor::RightRegister() { return x0; }
 
 
 const Register ArgumentsAccessReadDescriptor::index() { return x1; }
 const Register ArgumentsAccessReadDescriptor::parameter_count() { return x0; }
 
 
 const Register ApiGetterDescriptor::function_address() { return x2; }
 
 
 const Register MathPowTaggedDescriptor::exponent() { return x11; }
@@ skipping 356 matching lines @@
       x1,  // math rounding function
       x3,  // vector slot id
       x4,  // type vector
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64