[PATCH] D5767: Template Instantiation Observer + a few other templight-related changes

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith added a comment.

I'm not entirely sure what's happening with this and https://reviews.llvm.org/D38818, but the direction looks good to me, and I left a couple of comments on the other review thread.


https://reviews.llvm.org/D5767