static LS tok_parseInnerArgsList(S s) {
  ret tok_parseInnerArgsList(javaTok(s));
}

static LS tok_parseInnerArgsList(LS tok) {
  ret tok_parseInnerArgsList(tok, getBracketMap(tok));
}
  
static LS tok_parseInnerArgsList(LS tok, Map<Int> bracketMap) {
  new LS args;
  int argStart = 1, i = 1;
  while (i < l(tok)-2) {
    Int j = bracketMap.get(i);
    if (j != null) continue with i = j+2;
    if (eqGetOneOf(tok, i, ",")) {
      if (i > argStart) args.add(trimJoinSubList(tok, argStart, i));
      argStart = i+2;
    }
    i += 2;
  }
  if (i > argStart) args.add(trimJoinSubList(tok, argStart, i));
  ret args;
}

Began life as a copy of #1015569