end YarnTask.WaitUntil if CancellationToken is cancelled

CHANGELOG.md

@@ -46,6 +46,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fixed an issue where functions would not be registered with the VM until after the first call to `CommandDispatcher`.
 - `YarnProjectImporter.GenerateStringsTable` is now public.
 - Yarn Projects now allow choosing more specific cultures (for example 'pt-BR' and 'en-AU' rather than simply 'pt' and 'en') as their base language.
+- Fixed an issue where the System.Threading.Task implementation of YarnTask.WaitUntil did not return early when the CancellationToken was cancelled ([@dogboydog])
 
 ### Removed
 

Runtime/Async/YarnTask/YarnTask.Task.cs

@@ -96,7 +96,7 @@ public static partial YarnTask Delay(TimeSpan timeSpan, CancellationToken token)
 
         public static partial async YarnTask WaitUntil(System.Func<bool> predicate, System.Threading.CancellationToken token)
         {
-            while (predicate() == false)
+            while (!token.IsCancellationRequested && predicate() == false)
             {
                 await Task.Yield();
             }