Fixed eslint issues within boolean-prop-naming.js file

Author: caroline223

lib/rules/boolean-prop-naming.js

@@ -172,9 +172,10 @@ module.exports = {
      * @param {Function} addInvalidProp callback to run for each error
      */
     function runCheck(proptypes, addInvalidProp) {
-      proptypes = proptypes || [];
+      let newProptypes = proptypes;
+      newProptypes = newProptypes || [];
 
-      proptypes.forEach((prop) => {
+      newProptypes.forEach((prop) => {
         if (config.validateNested && nestedPropTypes(prop)) {
           runCheck(prop.value.arguments[0].properties, addInvalidProp);
           return;