[PATCH] D59603: [PR40707][PR41011][OpenCL] Allow addr space spelling without double underscore in C++ mode

[Ronan Keryell via Phabricator via cfe-commits]

keryell added a comment.

I was a little bit worried about

  struct top_level { int i; };
  
  private ::top_level a;

but it should be fine because in that case we have a `tok::coloncolon`


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  https://reviews.llvm.org/D59603/new/

https://reviews.llvm.org/D59603