public static boolean block_lambda_body(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "block_lambda_body")) return false;
    if (!nextTokenIsFast(b, T_LBRACE)) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = block_lambda_body_impl(b, l + 1);
    exit_section_(b, m, BLOCK_LAMBDA_BODY, r);
    return r;
  }
public static boolean block_lambda_body(PsiBuilder b, int l)