public static boolean use_feature_req(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "use_feature_req")) return false;
    if (!nextTokenIs(b, USE_FEATURE)) return false;
    boolean r, p;
    Marker m = enter_section_(b, l, _NONE_, USE_FEATURE_REQ, null);
    r = consumeTokens(b, 1, USE_FEATURE, IDENTIFIER);
    p = r; // pin = 1
    exit_section_(b, l, m, r, p, null);
    return r || p;
  }
public static boolean use_feature_req(PsiBuilder b, int l)