2 REM ExpectedError: BC30610
3 REM ErrorMessage: Class 'D' must either be declared 'MustInherit' or override the following inherited 'MustOverride' member(s): Public MustOverride Function F() As Object.
6 REM ExpectedError: BC31404
7 REM ErrorMessage: 'Public Shadows Function F() As Object' cannot shadow a method declared 'MustOverride'.
10 MustOverride
Function F()