swift234

Implement support for lookup of members of the current
oneof/struct/protocol within a static method. The lookup is performed
on the metatype (as one would get when using qualified syntax
Type.member). Add tests to verify that this provides proper
overloading behavior.

As a drive-by, actually set the type of the implicit 'this' variable
during name binding for a non-static method.



Swift SVN r1394