swift234

Sema: Always resolve tuples as patterns.

I was thinking we could avoid converting TupleExprs to patterns when their components are all Exprs, but I wasn't thinking straight. Recursive ExprPattern matches still need to work inside tuple literals even when all of the subpatterns are exprs. For instance, (0, 1, 2) ought to match (0, 0..10, 0..10) given an IntEnumeratorType =~ Int operator.

Swift SVN r5998