Fix Windows build after r12364.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10880004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/platform.h

@@ -84,8 +84,8 @@ inline int lrint(double flt) {
     // If the number is halfway between two integers, round to the even one.
     intgr--;
   }
-  return intgr;
 #endif
+  return intgr;
 }