module: named anonymous function for debugging purposes

My first contribution This commit is to help in the effort to name all anonymous functions to help when heap debugging. The issue asked for any functions to be updated that are not on a prototype and this file contains one function that meets those needs. A previous pull request (13849) was not completed and did not meet the requirements of the issue so this PR looks to complete that. Refs: #8913

Author: ndangles

lib/internal/modules/cjs/loader.js

@@ -776,7 +776,7 @@ Module._initPaths = function(){
 }
 
 if(nodePath){
-paths=nodePath.split(path.delimiter).filter(function(path){
+paths=nodePath.split(path.delimiter).filter(functionpathsFilterCB(path){
 return!!path;
 }).concat(paths);
 }