Tests whether a symbol has already been marked as ignore
@param name {String} symbol name
@param {Boolean} true if ignored
function(name) {
      for (var tmp = this.__scope; tmp; tmp = tmp.parent) {
        if (tmp.ignore) {
          if (tmp.ignore[name]) {
            return true; 
          }
          for (var key in tmp.ignore) {
            if (tmp.ignore[key] !== true) {
              if (name.startsWith(tmp.ignore[key])) {
                return true;
              }
            } 
          }
        } 
      }
      return false;
    }