Fix error in for-in on x64 platform using full compiler with keyed store IC....

src/x64/full-codegen-x64.cc

 // 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 1500 matching lines @@
       __ pop(rax);  // Restore value.
       __ Move(rcx, prop->key()->AsLiteral()->handle());
       Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize));
       __ call(ic, RelocInfo::CODE_TARGET);
       __ nop();  // Signal no inlined code.
       break;
     }
     case KEYED_PROPERTY: {
       __ push(rax);  // Preserve value.
       VisitForValue(prop->obj(), kStack);
-      VisitForValue(prop->key(), kStack);
-      __ movq(rax, Operand(rsp, 2 * kPointerSize));
+      VisitForValue(prop->key(), kAccumulator);
+      __ movq(rcx, rax);
+      __ pop(rdx);
+      __ pop(rax);
       Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize));
       __ call(ic, RelocInfo::CODE_TARGET);
       __ nop();  // Signal no inlined code.
-      __ Drop(3);  // Receiver, key, and extra copy of value.
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::EmitVariableAssignment(Variable* var,
                                                Token::Value op,
                                                Expression::Context context) {
   // Left-hand sides that rewrite to explicit property accesses do not reach
@@ skipping 1703 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64