[arm][arm64] fix code for InstanceofStub

src/arm/code-stubs-arm.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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1423 matching lines @@
 
   Label object_not_null, object_not_null_or_smi;
   __ bind(&not_js_object);
   // Before null, smi and string value checks, check that the rhs is a function
   // as for a non-function rhs an exception needs to be thrown.
   __ JumpIfSmi(function, &slow);
   __ CompareObjectType(function, scratch2, scratch, JS_FUNCTION_TYPE);
   __ b(ne, &slow);
 
   // Null is not instance of anything.
-  __ cmp(scratch, Operand(isolate()->factory()->null_value()));
+  __ cmp(object, Operand(isolate()->factory()->null_value()));
   __ b(ne, &object_not_null);
   if (ReturnTrueFalseObject()) {
     __ Move(r0, factory->false_value());
   } else {
     __ mov(r0, Operand(Smi::FromInt(1)));
   }
   __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   __ bind(&object_not_null);
   // Smi values are not instances of anything.
@@ skipping 3223 matching lines @@
                               MemOperand(fp, 6 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM