[wasm][aot][tests] System.Threading.Tasks.Tests failures

[radical]

This can be reproduced on main.

Log

[19:53:49] info: Starting:    System.Threading.Tasks.Tests.dll
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.TaskMethodBuilder_ValidateFaultedTask
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.TrackedSyncContext_ValidateException
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.TaskMethodBuilderT_ValidateFaultedTask
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.Tcs_ValidateFaultedTask
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] info: Finished:    System.Threading.Tasks.Tests.dll

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Issue Details

---

Log

[19:53:49] info: Starting:    System.Threading.Tasks.Tests.dll
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.TaskMethodBuilder_ValidateFaultedTask
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.TrackedSyncContext_ValidateException
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.TaskMethodBuilderT_ValidateFaultedTask
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] fail: [FAIL] System.Threading.Tasks.Tests.AsyncTaskMethodBuilderTests.Tcs_ValidateFaultedTask
[19:53:50] info: Assert.NotNull() Failure
[19:53:50] info: 
[19:53:50] info: Finished:    System.Threading.Tasks.Tests.dll

Author:	radical
Assignees:	-
Labels:	arch-wasm, area-Codegen-AOT-mono, wasm-aot-test
Milestone:	-

[vargaz]

Caused by missing stacktrace support, i.e. this assert fails:

       private static void ValidateException(Exception e)
        {
            Assert.NotNull(e);
            Assert.NotNull(e.StackTrace);
            Assert.Matches(@"---.+---", e.StackTrace);
        }

[lewing]

closing in favor of #50957