Joe Groff 419ba5cbea Change RawRepresentable to use failable initializers and property requirements. ...

Redefine the RawRepresentable protocol to use an 'init?' method instead of 'fromRaw(Raw)', and a 'raw' get-only property instead of 'toRaw()'. Update the compiler to support deriving conformances for enums and option sets with the new protocol. rdar://problem/18216832

Swift SVN r21762

2014-09-06 18:40:14 +00:00

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