Fix several evaluation order sensitive GC-unsafe places.

src/runtime.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 765 matching lines @@
         elms->set(VALUE_INDEX, *substr);
         elms->set(WRITABLE_INDEX, Heap::false_value());
         elms->set(ENUMERABLE_INDEX,  Heap::false_value());
         elms->set(CONFIGURABLE_INDEX, Heap::false_value());
         return *desc;
       }
 
       case JSObject::INTERCEPTED_ELEMENT:
       case JSObject::FAST_ELEMENT: {
         elms->set(IS_ACCESSOR_INDEX, Heap::false_value());
-        elms->set(VALUE_INDEX, *GetElement(obj, index));
+        Handle<Object> value = GetElement(obj, index);
+        elms->set(VALUE_INDEX, *value);
         elms->set(WRITABLE_INDEX, Heap::true_value());
         elms->set(ENUMERABLE_INDEX,  Heap::true_value());
         elms->set(CONFIGURABLE_INDEX, Heap::true_value());
         return *desc;
       }
 
       case JSObject::DICTIONARY_ELEMENT: {
         Handle<JSObject> holder = obj;
         if (obj->IsJSGlobalProxy()) {
           Object* proto = obj->GetPrototype();
@@ skipping 12 matching lines @@
                 FixedArray::cast(dictionary->ValueAt(entry));
             elms->set(IS_ACCESSOR_INDEX, Heap::true_value());
             if (CheckElementAccess(*obj, index, v8::ACCESS_GET)) {
               elms->set(GETTER_INDEX, callbacks->get(0));
             }
             if (CheckElementAccess(*obj, index, v8::ACCESS_SET)) {
               elms->set(SETTER_INDEX, callbacks->get(1));
             }
             break;
           }
-          case NORMAL:
+          case NORMAL: {
             // This is a data property.
             elms->set(IS_ACCESSOR_INDEX, Heap::false_value());
-            elms->set(VALUE_INDEX, *GetElement(obj, index));
+            Handle<Object> value = GetElement(obj, index);
+            elms->set(VALUE_INDEX, *value);
             elms->set(WRITABLE_INDEX, Heap::ToBoolean(!details.IsReadOnly()));
             break;
+          }
           default:
             UNREACHABLE();
             break;
         }
         elms->set(ENUMERABLE_INDEX, Heap::ToBoolean(!details.IsDontEnum()));
         elms->set(CONFIGURABLE_INDEX, Heap::ToBoolean(!details.IsDontDelete()));
         return *desc;
       }
     }
   }
@@ skipping 10461 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal