When parsing ObjC types from encoded strings (and disallowing any-type), the...

When parsing ObjC types from encoded strings (and disallowing any-type), the ^? combination gets resolved to no type, while we could resolve it to void*
I don't think on any of the platforms where ObjC matters sizeof(T*) depends on T, so even if we never figured out the pointee type, the pointer type should still be sane
This might also allow some limited inspection where previously none was possible, so a win

llvm-svn: 219540