// This source file is part of the Swift.org open source project
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors

// RUN: not %target-swift-frontend %s -emit-ir
{
do{for{("""
if(t:_?==_{}false?
{}().{}{_{{_
_[]{for{)
(_{true{
&.>"""
_..._
(0(
&)...f>{$0{_
{
_.f>{nil-{
&true?{
&{\n&(
(t:_
#if8=1,{
.{&()
{[_
{[1
_?={Int
[(Int:_{
{(0{Array
{}{$0(Int:_[&._{_{{
-{&true
{{_?=nil._=_
R{
{
({
_
a?=_{_
nil as(0{(t:_{_?==(t:_?=nil-{_
(({
&
Array
{[[[]{_>{[map
[]{_
&(*)
{
{[[[]
Ran]
_
{true[_?={{[true[&[_
if()
-{(
{Array
[]{true?=[](<{_
true
true[]
{true{\n&_[]
for{(_{_
#if8=_
{
-_?
[]
nil (""",{for{_{
(
[(0^_..A[[-{
&._
var()
&{nil-{{&(-{Int:_?=nil.{{{_?
{_?=(_?
-.{&[1,_._[&{_?
{
&.A[-{_
{
&([map
-{{&_?,{_{{
[]
_?
&true[()
&)
Slice.f>_
{
&_?=0^_
&("
{_===\n{_.f\n&true