@Nullable
  public static PsiElement qualifiedNameToElement(@NotNull String qualifiedName, @NotNull Project project) {
    for (QualifiedNameProvider provider : QualifiedNameProvider.EP_NAME.getExtensionList()) {
      PsiElement element = provider.qualifiedNameToElement(qualifiedName, project);
      if (element != null) return element;
    }
    return null;
  }
@Nullable
  public static PsiElement qualifiedNameToElement(@NotNull String qualifiedName, @NotNull Project project)