static boolean def_modifier(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "def_modifier")) return false;
    if (!nextTokenIsFast(b, KW_DEF)) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = consumeTokenFast(b, KW_DEF);
    r = r && def_modifier_1(b, l + 1);
    exit_section_(b, m, null, r);
    return r;
  }
static boolean def_modifier(PsiBuilder b, int l)