[cfe-dev] [Patch] AST support, and unqualified name lookup for using-directives

[Piotr Rak]

Hi,

I have played bit more with using-directives. Attached adds AST
support for using-directives (no serialization still), and makes
Sema::LookupName look ugly:) I may split it into two separated
patches(AST and lookup), if it is needed.
I would also want to also ask, if there is any master plan how to get
rid of OverloadedFunctionDecl yet, or anyone actively working on it
now?

Piotr
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