Make newer GCCs happier: Fixed NULL vs. 0 confusion.

src/x64/deoptimizer-x64.cc

 // Copyright 2011 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 236 matching lines @@
   ASSERT(*(call_target_address - 3) == 0x73 &&  // jae
          *(call_target_address - 2) == 0x07 &&  // offset
          *(call_target_address - 1) == 0xe8);   // call
   *(call_target_address - 3) = 0x90;  // nop
   *(call_target_address - 2) = 0x90;  // nop
   Assembler::set_target_address_at(call_target_address,
                                    replacement_code->entry());
 
   RelocInfo rinfo(call_target_address,
                   RelocInfo::CODE_TARGET,
-                  NULL,
+                  0,
                   unoptimized_code);
   unoptimized_code->GetHeap()->incremental_marking()->RecordWriteIntoCode(
       unoptimized_code, &rinfo, replacement_code);
 }
 
 
 void Deoptimizer::RevertStackCheckCodeAt(Address pc_after,
                                          Code* check_code,
                                          Code* replacement_code) {
   Address call_target_address = pc_after - kIntSize;
@@ skipping 586 matching lines @@
   }
   __ bind(&done);
 }
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64