@NotNull
  public static MarkdownFile createFile(@NotNull Project project, @NotNull String text) {
    final LightVirtualFile virtualFile = new LightVirtualFile("temp.rb", MarkdownLanguage.INSTANCE, text);
    PsiFile psiFile = ((PsiFileFactoryImpl)PsiFileFactory.getInstance(project))
      .trySetupPsiForFile(virtualFile, MarkdownLanguage.INSTANCE, true, true);

    if (!(psiFile instanceof MarkdownFile)) {
      throw new RuntimeException("Cannot create a new markdown file. Text: " + text);
    }

    return (MarkdownFile)psiFile;
  }
@NotNull
  public static MarkdownFile createFile(@NotNull Project project, @NotNull String text)