[Lldb-commits] [lldb] Refactor TypeSystemClang to use static language set initialization (PR #172567)

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jimingham wrote:

The warning is emitted the first time you select a frame with the given language (it's eventually `PrintWarningUnsupportedLanguage` in `Thread::FrameSelectedCallback`.

As a new Rust user of lldb, I would certainly appreciate being told that the expression parser's not going to work.  So I think we need to make the warning code distinguish between "variable printing" support and "expression evaluation" support and then make the warning reflect which of those is true for the current language

https://github.com/llvm/llvm-project/pull/172567