@ApiStatus.Internal
  public static @NotNull PsiFile obtainCopyForPreview(@NotNull PsiFile file, @NotNull PsiFile originalFile) {
    PsiFile copy = (PsiFile)file.copy();
    copy.putUserData(PREVIEW_MARKER, originalFile);
    return copy;
  }
@ApiStatus.Internal
  public static @NotNull PsiFile obtainCopyForPreview(@NotNull PsiFile file, @NotNull PsiFile originalFile)