[proxies] fix access issue when having proxies on the prototype-chain of global objects.

src/crankshaft/arm/lithium-codegen-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/crankshaft/arm/lithium-codegen-arm.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h"
@@ skipping 2624 matching lines @@
   // will be ruled out below.
   if (instr->hydrogen()->ObjectNeedsSmiCheck()) {
     __ SmiTst(object);
     EmitFalseBranch(instr, eq);
   }
 
   // Loop through the {object}s prototype chain looking for the {prototype}.
   __ ldr(object_map, FieldMemOperand(object, HeapObject::kMapOffset));
   Label loop;
   __ bind(&loop);
+
+  // Deoptimize if the object needs to be access checked.
+  __ ldrb(object_instance_type,
+          FieldMemOperand(object_map, Map::kBitFieldOffset));
+  __ tst(object_instance_type, Operand(1 << Map::kIsAccessCheckNeeded));
+  DeoptimizeIf(ne, instr, Deoptimizer::kAccessCheck);
+  // Deoptimize for proxies.
   __ CompareInstanceType(object_map, object_instance_type, JS_PROXY_TYPE);
   DeoptimizeIf(eq, instr, Deoptimizer::kProxy);
+
   __ ldr(object_prototype, FieldMemOperand(object_map, Map::kPrototypeOffset));
   __ cmp(object_prototype, prototype);
   EmitTrueBranch(instr, eq);
   __ CompareRoot(object_prototype, Heap::kNullValueRootIndex);
   EmitFalseBranch(instr, eq);
   __ ldr(object_map, FieldMemOperand(object_prototype, HeapObject::kMapOffset));
   __ b(&loop);
 }
 
 
@@ skipping 2983 matching lines @@
   __ push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8