fix alert on class

Signed-off-by: Tobias Gurtzick <[email protected]>

Author: wzrdtales

lib/class.js

@@ -7,7 +7,7 @@ var initializing = false;
 
 /*eslint-disable */
 var fnTest = /xyz/.test(function() {
-  xyz;
+  xyz; // lgtm [js/useless-expression]
 })
   ? /\b_super\b/
   : /.*/;