[Lldb-commits] [lldb] Detect against invalid variant index for LibStdC++ std::variant data formatters (PR #69253)

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jeffreytan81 wrote:

> We should add a test. Should be easy to access the "_M_index" child and set its value to something invalid and then make sure the summary is "".

Sure, I can do that. 

https://github.com/llvm/llvm-project/pull/69253