Doug Gregor ad1a9ac2c3 Eliminate default argument expressions from the type system. ...

Elements of a tuple type now know if there is a default argument, and
what kind of default argument it is (callee side, __FILE__, __LINE__,
__COLUMN__), but they don't have an actual expression. There are a
number of cleanups this enables that will follow. 

Note that the serialization support is as-yet-untested.


Swift SVN r6351

2013-07-18 18:49:32 +00:00

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