[Lldb-commits] [lldb] Convert the StackFrameList mutex to a shared mutex. (PR #117252)

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jimingham wrote:

When we decided to allow C++11 usage in lldb I think we opted into requiring platforms that have relatively complete support for the C++11 additions.  I don't think it makes sense to try to limit the use of C++11 to some "commonly supported subset".  

https://github.com/llvm/llvm-project/pull/117252