[ASTextNode] Implement an example comparing ASTextNode 1 & 2 behavior. (#570)

* fix SIMULATE_WEB_RESPONSE not imported #449

* add constraint to using catching for layout

* Add TextNode example to test Yoga Layout

* update Yoga version

* add debugging log

* fix lisence

* clean up

* clean up

* fix lisence warning

* add shared scheme

* change sdk version

* revert some metadata

* Merge FlexLayoutExample to TextStressText.
Add flags to control different TextNode used.

* clean up

* fix lisence and syntax

* clean up

* remove xcworkspacedata

* Tiny coding style changes

* Another tiny change related to code style

examples_extra/TextStressTest/Sample/CollectionViewController.m

@@ -0,0 +1,67 @@
+//
+//  CollectionViewController.m
+//  Texture
+//
+//  Copyright (c) 2017-present, Pinterest, Inc.  All rights reserved.
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#import "CollectionViewController.h"
+#import "TextCellNode.h"
+
+@interface CollectionViewController() <ASCollectionDataSource, ASCollectionDelegate>
+{
+  ASCollectionNode *_collectionNode;
+  NSArray<NSString *> *_labels;
+  TextCellNode *_cellNode;
+}
+
+@end
+
+@implementation CollectionViewController
+
+- (instancetype)init
+{
+  UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
+  _collectionNode = [[ASCollectionNode alloc] initWithCollectionViewLayout:flowLayout];
+  CGRect rect = [[UIApplication sharedApplication] statusBarFrame];
+  _collectionNode.contentInset = UIEdgeInsetsMake(rect.size.height, 0, 0, 0);
+  self = [super initWithNode:_collectionNode];
+  if (self) {
+    _collectionNode.delegate = self;
+    _collectionNode.dataSource = self;
+  }
+  return self;
+}
+
+- (void)viewDidLoad
+{
+  [super viewDidLoad];
+  _collectionNode.backgroundColor = [UIColor whiteColor];
+  _labels = @[@"Fight of the Living Dead: Experiment Fight of the Living Dead: Experiment", @"S1 • E1"];
+}
+
+- (NSInteger)collectionNode:(ASCollectionNode *)collectionNode numberOfItemsInSection:(NSInteger)section
+{
+  return 1;
+}
+
+- (ASCellNodeBlock)collectionNode:(ASCollectionNode *)collectionNode nodeBlockForItemAtIndexPath:(NSIndexPath *)indexPath
+{
+  return ^{
+    _cellNode = [[TextCellNode alloc] initWithText1:_labels[0] text2:_labels[1]];
+    return _cellNode;
+  };
+}
+
+- (ASSizeRange)collectionNode:(ASCollectionNode *)collectionNode constrainedSizeForItemAtIndexPath:(NSIndexPath *)indexPath
+{
+  CGFloat width = collectionNode.view.bounds.size.width;
+  return ASSizeRangeMake(CGSizeMake(width, 0.0f), CGSizeMake(width, CGFLOAT_MAX));
+}
+
+@end