Log message of unexpected exception in ThrowsAny (dotnet#64064)

* Log message of unexpected exception in ThrowsAny

* Update AssertExtensions.cs

src/libraries/Common/tests/TestUtilities/System/AssertExtensions.cs

@@ -209,7 +209,7 @@ private static void ThrowsAnyInternal(Action action, params Type[] exceptionType
                 if (exceptionTypes.Any(t => t.Equals(exceptionType)))
                     return;
 
-                throw new XunitException($"Expected one of: ({string.Join<Type>(", ", exceptionTypes)}) -> Actual: ({exceptionType})");
+                throw new XunitException($"Expected one of: ({string.Join<Type>(", ", exceptionTypes)}) -> Actual: ({exceptionType}): {e}"); // Log message and callstack to help diagnosis
             }
 
             throw new XunitException($"Expected one of: ({string.Join<Type>(", ", exceptionTypes)}) -> Actual: No exception thrown");