Introduce BoundNodes::getMap.

The purpose of this function is to allow clients of the dynamic AST matcher
to enumerate each binding.

Differential Revision: http://llvm-reviews.chandlerc.com/D2095

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194112 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed