Fix typo in last change

src/ia32/ic-ia32.cc

 // Copyright 2006-2008 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 273 matching lines @@
   // Is it a string?
   __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edx);
   __ j(above_equal, &slow);
   // Is the string an array index, with cached numeric value?
   __ mov(ebx, FieldOperand(eax, String::kLengthOffset));
   __ test(ebx, Immediate(String::kIsArrayIndexMask));
   __ j(not_zero, &index_string, not_taken);
 
   // If the string is a symbol, do a quick inline probe of the receiver's
   // dictionary, if it exists.
-  __ movzx_b(ebx, FieldOperand(exd, Map::kInstanceTypeOffset));
+  __ movzx_b(ebx, FieldOperand(edx, Map::kInstanceTypeOffset));
   __ test(ebx, Immediate(kIsSymbolMask));
   __ j(zero, &slow, not_taken);
   // Probe the dictionary leaving result in ecx.
   GenerateDictionaryLoad(masm, &slow, ebx, ecx, edx, eax);
   GenerateCheckNonObjectOrLoaded(masm, &slow, ecx, edx);
   __ mov(eax, Operand(ecx));
   __ IncrementCounter(&Counters::keyed_load_generic_symbol, 1);
   __ ret(0);
   // Array index string: If short enough use cache in length/hash field (ebx).
   // We assert that there are enough bits in an int32_t after the hash shift
@@ skipping 685 matching lines @@
 
   // Do tail-call to runtime routine.
   __ TailCallRuntime(
       ExternalReference(IC_Utility(kSharedStoreIC_ExtendStorage)), 3);
 }
 
 #undef __
 
 
 } }  // namespace v8::internal