swift234

Wrap delegating initialization ('self.init' calls) in RebindSelfInConstructorExpr.

As with chaining initialization ('super.init' calls), wrapping the
delegating initialization in RebindSelfInConstructorExpr ensures that
'self' gets overwritten by the result of delegation.

Note that I'd much prefer that RebindSelfInConstructorExpr be
introduced by the type checker (not the parser). That cleanup will
follow.



Swift SVN r11932