Make Failure inherit from MaybeObject instead of Object.

src/ia32/assembler-ia32.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 102 matching lines @@
   __ mov(esp, Operand(ebp));
   __ pop(ebx);
   __ pop(ecx);
   __ popfd();
   __ pop(ebp);
   __ ret(0);
 #undef __
 
   CodeDesc desc;
   assm.GetCode(&desc);
-  Object* code = Heap::CreateCode(desc,
-                                  Code::ComputeFlags(Code::STUB),
-                                  Handle<Code>::null());
+
+  Object* code;
+  { MaybeObject* maybe_code = Heap::CreateCode(desc,
+                                               Code::ComputeFlags(Code::STUB),
+                                               Handle<Code>::null());
+    if (!maybe_code->ToObject(&code)) return;
+  }
   if (!code->IsCode()) return;
+
   PROFILE(CodeCreateEvent(Logger::BUILTIN_TAG,
                           Code::cast(code), "CpuFeatures::Probe"));
   typedef uint64_t (*F0)();
   F0 probe = FUNCTION_CAST<F0>(Code::cast(code)->entry());
   supported_ = probe();
   found_by_runtime_probing_ = supported_;
   uint64_t os_guarantees = OS::CpuFeaturesImpliedByPlatform();
   supported_ |= os_guarantees;
   found_by_runtime_probing_ &= ~os_guarantees;
 }
@@ skipping 2554 matching lines @@
     fprintf(coverage_log, "%s\n", file_line);
     fflush(coverage_log);
   }
 }
 
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32