// turns out they're all the same thing!?
svoid tok_reImmutableVars(LS tok) {
  jreplace_any_dyn(tok, ll(
    "reImmutable <id>;", "reimmutable <id>;",
    "remutable <id>;", "reMutable <id>;"
  ), (_tok, i) -> {
    S var = _get(tok, i+2);
    S var2 = makeVar(var);
    ret "var \*var2*/ = \*var*/; replace \*var*/ with \*var2*/.";
  });
}