Fix deopts causing uninitialized fixed typed arrays.

src/runtime.cc

 // Copyright 2012 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 1216 matching lines @@
       target->GetBuffer()->backing_store() ==
       source->GetBuffer()->backing_store());
     return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING);
   } else {  // Non-overlapping typed arrays
     return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING);
   }
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayMaxSizeInHeap) {
-  ASSERT_OBJECT_SIZE(FLAG_typed_array_max_size_in_heap);
+  ASSERT_OBJECT_SIZE(
+      FLAG_typed_array_max_size_in_heap + FixedTypedArrayBase::kDataOffset);
   return Smi::FromInt(FLAG_typed_array_max_size_in_heap);
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewInitialize) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 4);
   CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset, 2);
@@ skipping 13926 matching lines @@
   }
 }
 
 
 void Runtime::OutOfMemory() {
   Heap::FatalProcessOutOfMemory("CALL_AND_RETRY_LAST", true);
   UNREACHABLE();
 }
 
 } }  // namespace v8::internal