iOS unit tests crashing when the tests are randomized #72107
Description
This appears to be a memory corruption since it is showing up in weird places like so:
#0 0x0000600021c300b0 in fml::WeakPtr<flutter::PlatformView>::operator->() const at /Users/aaclarke/dev/engine/src/flutter/fml/memory/weak_ptr.h:112
#1 0x0000600021c993c1 in -[FlutterViewController surfaceUpdated:] at /Users/aaclarke/dev/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterViewController.mm:587
#2 0x0000600021c9a401 in -[FlutterViewController applicationWillResignActive:] at /Users/aaclarke/dev/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterViewController.mm:707
#3 0x00007fff23ac2c1c in __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ ()
#4 0x00007fff23ac20a5 in _CFXRegistrationPost1 ()
#5 0x00007fff23ac1e0f in ___CFXNotificationPost_block_invoke ()
#6 0x00007fff23bbffe3 in -[_CFXNotificationRegistrar find:object:observer:enumerator:] ()
#7 0x00007fff23ac1776 in _CFXNotificationPost ()
#8 0x00007fff2564d429 in -[NSNotificationCenter postNotificationName:object:userInfo:] ()
#9 0x0000600021bca8d7 in -[FlutterPluginAppLifeCycleDelegateTest testWillResignActive] at /Users/aaclarke/dev/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterPluginAppLifeCycleDelegateTest.m:48
Steps to reproduce:
- Check out master
- Run the unit tests in random order, eventually you'll get a crash