public static boolean block_statement(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "block_statement")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, BLOCK_STATEMENT, "<block statement>");
    r = block_statement_0(b, l + 1);
    r = r && lazy_block(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean block_statement(PsiBuilder b, int l)