[PATCH] D50672: [ASTImporter] Change the return result of Decl import to Optional

[Gabor Marton via Phabricator via cfe-commits]

martong added a comment.

Roughly, this is the direction where we are heading with `Expected<T>`:
https://github.com/Ericsson/clang/pull/457/commits/783b7f5cce9de589a5c3c3ae983398cf499077ec

(If you are interested, here is our whole thought process:
https://github.com/Ericsson/clang/pull/457)


Repository:
  rC Clang

https://reviews.llvm.org/D50672