Fixed breakage caused by r11051 on non-ia32 platforms.

src/x64/full-codegen-x64.cc

 // Copyright 2012 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 1448 matching lines @@
         VisitForStackValue(key);
         VisitForStackValue(value);
         if (property->emit_store()) {
           __ Push(Smi::FromInt(NONE));    // PropertyAttributes
           __ CallRuntime(Runtime::kSetProperty, 4);
         } else {
           __ Drop(3);
         }
         break;
       case ObjectLiteral::Property::GETTER:
-        accessor_table.find(key)->second->getter = value;
+        accessor_table.lookup(key)->second->getter = value;
         break;
       case ObjectLiteral::Property::SETTER:
-        accessor_table.find(key)->second->setter = value;
+        accessor_table.lookup(key)->second->setter = value;
         break;
     }
   }
 
   // Emit code to define accessors, using only a single call to the runtime for
   // each pair of corresponding getters and setters.
   for (AccessorTable::Iterator it = accessor_table.begin();
        it != accessor_table.end();
        ++it) {
     __ push(Operand(rsp, 0));  // Duplicate receiver.
@@ skipping 2946 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64