Emit better code when pushing a constant.

Review URL: http://codereview.chromium.org/5884003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6053 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/lithium-ia32.cc

@@ -1337,7 +1337,7 @@ LInstruction* LChunkBuilder::DoApplyArguments(HApplyArguments* instr) {
 
 LInstruction* LChunkBuilder::DoPushArgument(HPushArgument* instr) {
   ++argument_count_;
-  LOperand* argument = Use(instr->argument());
+  LOperand* argument = UseOrConstant(instr->argument());
   return new LPushArgument(argument);
 }