[PATCH] D47698: [ASTImporter] import macro source locations

[Nico Weber via Phabricator via cfe-commits]

thakis added a comment.

This code is live when reading pchs, correct? Does this have any measurable perf impact on deserializing pchs for, say, Cocoa.h or Windows.h?


Repository:
  rC Clang

https://reviews.llvm.org/D47698