[MT][browser] TestParallelScheduler fails, TaskScheduler.Default not used when no ParallelOptions are specified. #91582
Description
Failing after enabling all MT library tests (#91536).
[FAIL] System.Threading.Tasks.Tests.ParallelForTests.TestParallelScheduler
System.AggregateException : One or more errors occurred. (TestParallelScheduler: > FAILED. PFor: TaskScheduler.Default not used when no ParallelOptions are specified.
Expected: True
Actual: False)
---- TestParallelScheduler: > FAILED. PFor: TaskScheduler.Default not used when no ParallelOptions are specified.
Expected: True
Actual: False
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at System.Threading.Tasks.Tests.ParallelForTests.TestParallelScheduler()
at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
----- Inner Stack Trace -----
at System.Threading.Tasks.Tests.ParallelForTests.<>c__DisplayClass17_0.<TestParallelScheduler>b__0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.<>c.<.cctor>b__281_0(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)