While most tests have been changed to no longer give aborts, there are currently 2 tests in daffodil-test/scala-debug that have an abort with the message "Invariant broken". A Schema Definition Error message should be created for this and be used instead of an abort.

scala-debug/edu/illinois/ncsa/daffodil/section11/content_framing_properties/TestContentFramingPropertiesDebug.scala - test_encoding_property_expression

scala-debug/edu/illinois/ncsa/daffodil/section06/namespaces/TestNamespacesDebug.scala - test_multi_encoding_02