All generic bridgeable types can bridge for all their instantiations now. Removing this ferrets out some now-unnecessary traps that check for unbridgeable parameter types.
Foundation provides a number of specific operators defined in the
global scope. Push all of these into their corresponding types. This
cleanup helps verify that the SE-0091 implementation is generally
functional.
We currently specify a few internal ObjC classes. This commit ensures that they can not be accidentally exposed (and thus need to be supported) into the future. Luckily, NSData and NSDictionary/NSMutableDictionary already specify classForCoder in a general way. NSCharacterSet does not.
This commit also establishes unit tests to ensure all three types do not regress from this into the future.
Also, for completeness, it ensures classForArchiver and classForKeyedArchiver return appropriately as well.
Some mutation cases will cause the underlying copy on write cases to crash with a _SwiftNSCharacterSet doesn't respond to -mutableCopyWithZone: failure.
Fixes Bugs:
https://bugs.swift.org/browse/SR-1782
<rdar://problem/26608216>
