Fix typo.

R=mvstanton@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/14425005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14390 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/stub-cache-arm.cc

@@ -2198,7 +2198,7 @@ Handle<Code> CallStubCompiler::CompileMathFloorCall(
   __ bind(&slow);
   // Tail call the full function. We do not have to patch the receiver
   // because the function makes no use of it.
-  ParameterCount expected(fun);
+  ParameterCount expected(function);
   __ InvokeFunction(function, expected, arguments(),
                     JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD);