swift234

fix <rdar://problem/18123596> unexpected error on self. capture inside class method

We no do not require "self." for closures capturing self in static/class methods.
While we do actually capture the metatype more than we should (rdar://21030087),
this doesn't matter to the developer, since this capture cannot cause a cycle
in the reference graph that they should have to reason about.



Swift SVN r28804