code: function (lp) {
              var logicalPaths = this._logicalPaths;
              for (var index = 0, l = logicalPaths.length; index < l; index++) {
                  if (logicalPaths[index] === lp) {
                      return false;
                  }
              }
              this._logicalPaths.push(lp);
              return true;
          }
docs: Associate a new logical path to the loader Note: as multiple files can be packaged into a same file, a loader
  can be associated to multiple logical paths. Return true if the logicalPath was not already registered.
  @param {String} lp
  @return {Boolean}