Make Failure inherit from MaybeObject instead of Object.

test/cctest/test-disasm-ia32.cc

 // Copyright 2007-2008 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 420 matching lines @@
 
       __ psllq(xmm0, 17);
       __ psllq(xmm1, 42);
     }
   }
 
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
-  Object* code = Heap::CreateCode(desc,
-                                  Code::ComputeFlags(Code::STUB),
-                                  Handle<Object>(Heap::undefined_value()));
+  Object* code = Heap::CreateCode(
+      desc,
+      Code::ComputeFlags(Code::STUB),
+      Handle<Object>(Heap::undefined_value()))->ToObjectChecked();
   CHECK(code->IsCode());
 #ifdef DEBUG
   Code::cast(code)->Print();
   byte* begin = Code::cast(code)->instruction_start();
   byte* end = begin + Code::cast(code)->instruction_size();
   disasm::Disassembler::Disassemble(stdout, begin, end);
 #endif
 }
 
 #undef __