Description: This PR changes the signature of various unit test utilities in Testers from having an explicit allowUndefined boolean to accepting an enum Allow that has bit flags for Undefined and Null. The testers have also been updated to conditionally turn on running the test with null if Allow.Null is in the flags, although this is not being used yet.
Description: This PR changes the signature of various unit test utilities in
Testersfrom having an explicitallowUndefinedboolean to accepting an enumAllowthat has bit flags forUndefinedandNull. The testers have also been updated to conditionally turn on running the test withnullifAllow.Nullis in the flags, although this is not being used yet.Testing: All existing tests are passing