code: function getSynonyms(moduleName) {
      const preferredName = moduleName.split(".").join("/");
      if( preferredName === moduleName) {
          return [moduleName];
      }
      return [preferredName, moduleName];
  }
docs: Names with dots can be found in subfolder.
  For instance a module named "tfw.view.textbox" can have its javascript code
  in "tfw/view/textbox.js" or in "tfw.view.textbox.js".
  The first syntax is prefered.
  
  @param {string} moduleName - Name of the module with dots.
  @returns {array} One or two synonyms for this module name.