// turns out reMutable and reImmutable are the same thing :)
// TODO: handle this.myVar
svoid tok_reImmutableVars(LS tok) {
  tok_unifyKeywords(tok, remutableKeywords(), "reImmutable");
      
  // without assignment
  jreplace_dyn(tok, "reImmutable <id>;", (_tok, i) -> {
    S var = _get(tok, i+2);
    S var2 = makeVar(var);
    ret "var \*var2*/ = \*var*/; replace var \*var*/ with \*var2*/.\n";
  });
  
  // with assignment
  for (int i : jfind_all_reversed(tok, "reImmutable <id> =")) {
    S var = _get(tok, i+2);
    S var2 = makeVar(var);
    int j = tok_endOfStatement(tok, i+6);
    S expr = joinSubList(tok, i+6, j-1);
    tokReplace_reTok(tok, i, j,
      "var \*var2*/ = \*expr*/; replace var \*var*/ with \*var2*/.\n");
  }
}