@Override
  public PsiFile fromString(@Nullable @NonNls String s, @NotNull ConvertContext context) {
    if (s == null) return null;
    VirtualFile f = LocalFileSystem.getInstance().findFileByPath(s);
    if (f == null) return null;
    return context.getPsiManager().findFile(f);
  }
@Override
  public PsiFile fromString(@Nullable @NonNls String s, @NotNull ConvertContext context)