* BaseTypeRef.cs (BaseTypeRef.Resolve): Make this abstract.
(BaseTypeRef.CreateMethodRef):
(BaseTypeRef.CreateFieldRef): Make protected and abstract.
* BaseClassRef.cs (BaseClassRef.Clone): Make this abstract.
Update all derived classes.
* PrimitiveTypeRef.cs (PrimitiveTypeRef.CreateMethodRef):
* GenericTypeInst.cs (GenericTypeInst.CreateMethodRef): Implement, but throw
exception as this method is not used.
git-svn-id: svn+ssh://mono-cvs.ximian.com/source/trunk/mcs@55622 e3ebcda4-bce8-0310-ba0a-eca2169e7518