docs: function makeBoundHelper(fn) {
      _emberMetalDebug.deprecate('Using `Ember.HTMLBars.makeBoundHelper` is deprecated. Please refactor to use `Ember.Helper` or `Ember.Helper.helper`.', false, { id: 'ember-htmlbars.make-bound-helper', until: '3.0.0' });
      return _emberHtmlbarsHelper.helper(fn);
    }