This allows "obj.description!" to work on iOS when 'obj' is an AnyObject,
even though 'description' is an implicit property created by the importer.
Swift SVN r18149
This fixes a case where the Swift-variadic and C-varargs versions of
various initializers were superseding each other
<rdar://problem/16801456>.
It also uncovered some more cases where we weren't getting quite the
right semantics for factory-methods-as-initializers, which are also
fixed here.
Swift SVN r18010
Test that string bridging interacts successfully both with native ObjC NSString methods and with Swift subclasses that define String methods end-to-end.
Swift SVN r5367
