svoid tok_pcallPrefix(LS tok) {
  jreplace_dyn(tok, "pcall <id>(", (_tok, i) -> S {
    S fname = tok.get(i+2);
    int iClosing = tok_findEndOfBracketPart(tok, i+4);
    tokAppend_reTok(tok, iClosing, ")");
    ret "pcallF(() -> " + fname + "(";
  });
}