[lld] [llvm] [Support][LLD] .time-trace.json Default File Extension (PR #122207)

[Hans Wennborg via llvm-commits]

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@@ -84,6 +84,8 @@ namespace llvm {
 
 class raw_pwrite_stream;
 
+static constexpr const auto TimeTraceFileExtension = ".time-trace.json";
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zmodem wrote:

If we're not going to use it outside the .cpp file, I think it's better to move it there.

About the type, my point was mostly that I think we should spell it out rather than using auto, and that either of const or constexpr should be enough -- having both seems redundant.

https://github.com/llvm/llvm-project/pull/122207