@Override
        public @NotNull AbstractFindUsagesDialog getFindUsagesDialog(boolean isSingleFile,
                                                                     boolean toShowInNewTab,
                                                                     boolean mustOpenInNewTab) {

          if (base instanceof FindUsagesHandlerUi) {
            return ((FindUsagesHandlerUi)base).getFindUsagesDialog(isSingleFile, toShowInNewTab, mustOpenInNewTab);
          }
          else {
            return super.getFindUsagesDialog(isSingleFile, toShowInNewTab, mustOpenInNewTab);
          }
        }
@Override
        public @NotNull AbstractFindUsagesDialog getFindUsagesDialog(boolean isSingleFile,
                                                                     boolean toShowInNewTab,
                                                                     boolean mustOpenInNewTab)