docs: function initBindings() {
      ngDevMode && assertEqual(viewData[BINDING_INDEX], -1, 'Binding index should not yet be set ' + viewData[BINDING_INDEX]);
      if (tView.bindingStartIndex === -1) {
          tView.bindingStartIndex = viewData.length;
      }
      viewData[BINDING_INDEX] = tView.bindingStartIndex;
  }