swift234

Deconstruct DotSyntaxBaseIgnoredExpr nodes into overloaded member
references, since the constraint-based type checker doesn't handle
such already type-checked nodes. 

The test here merely checks that we don't assert when dealing with
such nodes; it does not type-check due to the current hack regarding
function application where the left-hand side is "obviously" of
metatype type, which member expressions are not (yet).


Swift SVN r2920