This is the counterpart of the previous commit---if a class or protocol
is renamed with @objc, we should not be looking for it in Swift under
its Objective-C name.
Finishes rdar://problem/17469485
Swift SVN r29744
To limit user confusion when using conditional expressions of type Bool?, we've decided to remove the BooleanType (aka "LogicValue") conformance from optional types. (If users would like to use an expression of type Bool? as a conditional, they'll need to check against nil.)
Note: This change effectively regresses the "case is" pattern over types, since it currently demands a BooleanType conformance. I've filed rdar://problem/17791533 to track reinstating it if necessary.
Swift SVN r20637
In most cases this means adding @public to things that get serialized;
in a few cases it means using a modern public stdlib API instead of
a legacy thing I was trying to keep @internal.
Swift SVN r19350
Previously, it had a *nearly* pre-order traversal, but included private
imports before the top-level module being searched. This was leading to
strange errors that relied on search order, like
<rdar://problem/17127940> Qualifying Swift types by their module name doesn't work
Swift SVN r18806
