resolve_inc_tyvars: back to old behavior before 0fa3b456a267 where types of equal Vars are *not* unified -- recover last example in src/HOL/Metis_Examples/Clausification.thy;
resolve_inc_tyvars: back to old behavior before 0fa3b456a267 where types of equal Vars are *not* unified -- recover last example in src/HOL/Metis_Examples/Clausification.thy;

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle