[cfe-commits] [PATCH] Implements hasAncestor.

[jordan_rose@apple.com]

  There already is a ParentMap class; it's in AST. It does everything recursively, so maybe it would be good to change it for a RecursiveASTVisitor, but please alter the current file/interface so that existing clients (both the analyzer and some of the rewriters) can get the benefit of your work.

  (I haven't looked at your patch; this just jumped out at me.)

http://llvm-reviews.chandlerc.com/D36