[PATCH] D105169: [Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

It may not be worth changing now, but I want to mention: it's more conventional to have a `BoolOption` which adds `-[no-]noundef-analysis`. Since both positive and negative forms exist. When we make the default switch, existing users don't need to change the option. After the option becomes quite stable, we can remove the option.


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  https://reviews.llvm.org/D105169/new/

https://reviews.llvm.org/D105169