private void checkLightFileHasNoOtherPsi(@NotNull LightVirtualFile vFile) {
    FileViewProvider viewProvider = FileDocumentManager.getInstance().findCachedPsiInAnyProject(vFile);
    if (viewProvider != null) {
      Project project = viewProvider.getManager().getProject();
      if (project != myManager.getProject()) {
        String psiFiles = viewProvider.getAllFiles().stream().map(f -> f.getClass() + " [" + f.getLanguage() + "]").collect(Collectors.joining(", "));
        LOG.error(
          "Light files should have PSI only in one project, existing=" + viewProvider + " in " + project + ", requested in " + myManager.getProject()
          + "; psiFiles: " + psiFiles);
      }
    }
  }
private void checkLightFileHasNoOtherPsi(@NotNull LightVirtualFile vFile)