swift234

Make PrintAsObjC more tolerant of non-@objc classes within collections.

Swift's bridged collections are allowed to store objects of non-@objc
classes, e.g., an array of (non-@objc) Swift classes is still bridged
to NSArray. Deal with such cases by printing out the type as "NSArray
*", since we cannot name the type in Objective-C to provide a more
specialized NSArray type.

This is a fairly narrow fix for rdar://problem/20392771 that needs
more discussion.

Swift SVN r26905