message: Fix OptionalCallExpression formatting
diff: @@ -15,13 +15,14 @@ export default function CallExpression(builder: Builder, node: AnyNode): Tokens
  ? node
  : callExpression.assert(node);
  - const tokens: Tokens = [
  - concat(builder.tokenize(node.callee, node)),
  - concat(builder.tokenize(node.typeArguments, node)),
  - ];
  + const tokens: Tokens = builder.tokenize(node.callee, node);
  if (node.type === 'OptionalCallExpression') {
  - tokens.push(operator('?'));
  + tokens.push(operator('?.'));
  + }
  +
  + if (node.typeArguments) {
  + tokens.push(concat(builder.tokenize(node.typeArguments, node)));
  }
  return [
  