Incorrect result for list in and contains with nulls

[brynrhodes]

There are 3 tests in the list test operators group of the test suite that we have an incorrect expected outcome for (and a variance from what is published with the spec):

ContainsABNullHasNull
InNullEmpty
InNullAnd1Null

I have corrected the expected outcome in the test suite and added these tests to the skipped tests list, but the behavior should be corrected and the tests brought to passing