Doug Gregor 9abd2340bc Allow an 'inheritance' clause on typealiases, specifying what ...

protocols the underlying type of the type alias shall conform to. This
isn't super-motivating by itself (one could extend the underying type
instead), but serves as documentation, makes typealiases provide the
same syntax as other nominal types in this regard, and will also be
used to specify requirements on associated types.


Swift SVN r2133

2012-06-04 16:15:47 +00:00

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