No implicit conversion between a Foo** and a Handle<Foo>.

src/x64/assembler-x64.cc

 // Copyright 2009 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 98 matching lines @@
   __ movq(rsp, rbp);
   __ pop(rbx);
   __ pop(rcx);
   __ popfq();
   __ pop(rbp);
   __ ret(0);
 #undef __
 
   CodeDesc desc;
   assm.GetCode(&desc);
-  Object* code =
-      Heap::CreateCode(desc, NULL, Code::ComputeFlags(Code::STUB), NULL);
+  Object* code = Heap::CreateCode(desc,
+                                  NULL,
+                                  Code::ComputeFlags(Code::STUB),
+                                  Handle<Object>());
   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_;
   found_by_runtime_probing_ &= ~kDefaultCpuFeatures;
   uint64_t os_guarantees = OS::CpuFeaturesImpliedByPlatform();
   supported_ |= os_guarantees;
@@ skipping 2530 matching lines @@
     written_position_ = current_position_;
   }
 }
 
 
 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask |
                                   1 << RelocInfo::INTERNAL_REFERENCE |
                                   1 << RelocInfo::JS_RETURN;
 
 } }  // namespace v8::internal