[Flaky test] ValidationErrorTests.ExceptionCreatedFromValidationError_ContainsTheRightStackTrace flaky test

[jennyf19]

For net framework (net462 and net472):

Message: 
Assert.Equal() Failure: Strings differ
           ↓ (pos 0)
Expected: "secondMethod"
Actual:   "firstMethod"
           ↑ (pos 0)

[pmaytak]

Locally seems to always fail on net462 and net472 for me.