Fix the GC branch so it compiles and runs on 64 bit.

src/ia32/code-stubs-ia32.h

 // Copyright 2010 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 535 matching lines @@
       if (!ecx.is(scratch0_orig_) &&
           !ecx.is(object_orig_) &&
           !ecx.is(address_orig_)) {
         masm->pop(ecx);
       }
       if (!scratch0_.is(scratch0_orig_)) masm->pop(scratch0_);
     }
 
     // If we have to call into C then we need to save and restore all caller-
     // saved registers that were not already preserved.  The caller saved
-    // registers are eax, ecx and adx.  The three scratch registers (incl. ecx)
+    // registers are eax, ecx and edx.  The three scratch registers (incl. ecx)
     // will be restored by other means so we don't bother pushing them here.
     void SaveCallerSaveRegisters(MacroAssembler* masm, SaveFPRegsMode mode) {
       if (!scratch0_.is(eax) && !scratch1_.is(eax)) masm->push(eax);
       if (!scratch0_.is(edx) && !scratch1_.is(edx)) masm->push(edx);
       if (mode == kSaveFPRegs) {
         CpuFeatures::Scope scope(SSE2);
         masm->sub(Operand(esp),
                    Immediate(kDoubleSize * (XMMRegister::kNumRegisters - 1)));
         // Save all XMM registers except XMM0.
         for (int i = XMMRegister::kNumRegisters - 1; i > 0; i--) {
@@ skipping 124 matching lines @@
                                  Register scratch1,
                                  bool load_elements_from_receiver,
                                  Label* key_not_smi,
                                  Label* value_not_smi,
                                  Label* not_pixel_array,
                                  Label* out_of_range);
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_CODE_STUBS_IA32_H_