[llvm-dev] [docs][RFC] Style for "end namespace" comments

[Salman Javed via llvm-dev]

On 12/6/21 12:47 PM, James Y Knight via llvm-dev wrote:
> That said, we should update the coding guidelines to recommend the 
> format which clang-tidy emits -- just to make everyone's lives easier.
As a newcomer to this project, this would make my life easier. Before 
submitting a patch for a review, I want to have some confidence that I 
haven't made some rookie mistake (missing namespace closing comments 
being a perfect example), so naturally I will run clang-tidy and 
clang-format. Then the reviewer can spend more time looking at the meat 
of my patch, rather than acting like a kind of human 
clang-format/clang-tidy pre-merge tool.

If the coding guidelines document defaulted to clang-tidy's suggested 
namespace comment style, that would cause the least amount of confusion 
for me. I will follow that style for any new namespaces I introduce to 
the code base.

I wouldn't go out and proclaim that all existing code that uses the 
other style ("end namespace clang") is now in direct violation of the 
guidelines and must be changed, though.