static boolean top_level_start(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "top_level_start")) return false;
    boolean r;
    r = consumeToken(b, KW_IMPORT);
    if (!r) r = block_level_start(b, l + 1);
    return r;
  }
static boolean top_level_start(PsiBuilder b, int l)