// add {} to a statement if it isn't a block already
// i = beginning of statement or block
svoid tok_statementToBlock(LS tok, int i) {
  if (neqGet(tok, i, "{")) {
    int iEnd = tok_findEndOfStatement(tok, i)-1;
    tokAppend_reTok(tok, iEnd, " }");
    tokPrepend_reTok(tok, i, "{ ");
  }
}