swift234

SILGen: Don't emit calls to objc super destructors

ObjC classes don't have a deallocating destructor, so we can't call up to it in a class derived from an ObjC class. Hack SILGen not to emit a call to the superclass destructor of a class inherited from an ObjC class. This is the wrong thing, but it looks like destructors don't get hooked up to ObjC dealloc methods anyway yet, so what the Swift destructor of an ObjC-derived class does is moot right now. This lets us remove the guards from IRGen that prevented ObjC destructors from being emitted.

Swift SVN r4784