private static boolean extends_recovery_0(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "extends_recovery_0")) return false;
    boolean r;
    r = consumeToken(b, T_COMMA);
    if (!r) r = consumeToken(b, KW_IMPLEMENTS);
    if (!r) r = consumeToken(b, T_LBRACE);
    return r;
  }
private static boolean extends_recovery_0(PsiBuilder b, int l)