[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:

Why put this in the header file and not the implementation file?

Also how about just `static const char TimeTraceFileExtension[] = ...`

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