public static boolean map_argument(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "map_argument")) return false;
    if (!nextTokenIsFast(b, T_COLON)) return false;
    boolean r, p;
    Marker m = enter_section_(b, l, _LEFT_, NAMED_ARGUMENT, null);
    r = consumeTokenFast(b, T_COLON);
    p = r; // pin = 1
    r = r && expression(b, l + 1, -1);
    exit_section_(b, l, m, r, p, null);
    return r || p;
  }
public static boolean map_argument(PsiBuilder b, int l)