Improve implementation of signature weakening to accommodate new tests
test242_inaccessibleBaseClass19() f.:
* do transfer baseclass decapsulation state
* shortcut: never weaken arguments of liftTo methods (no roles)
* avoid method TypeAnalyzer.getType() (from 12/2003) but use the resolved type of
  the argument - this suppresses repeated weakenings with multiple casted locals.
2 files changed