In the presence of modules, we can have multiple implicit instantiations of the same template. Teach RecursiveASTVisitor to visit all of those, not just one of them. This is difficult to test by itself, but will be covered by an upcoming change.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@204175 91177308-0d34-0410-b5e6-96231b3b80d8