Fix logical error in change 4515.

Review URL: http://codereview.chromium.org/1769011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4517 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x64/codegen-x64.cc

@@ -8100,7 +8100,7 @@ void CompareStub::Generate(MacroAssembler* masm) {
     builtin = strict_ ? Builtins::STRICT_EQUALS : Builtins::EQUALS;
   } else {
     builtin = Builtins::COMPARE;
-    __ push(Immediate(NegativeComparisonResult(cc_)));
+    __ Push(Smi::FromInt(NegativeComparisonResult(cc_)));
   }
 
   // Restore return address on the stack.