llvm-project

669627d0 - Add check 'cppcoreguidelines-use-enum-class' (#138282)

Add check 'cppcoreguidelines-use-enum-class' (#138282) Warn on non-class enum definitions as suggested by the Core Guidelines: https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#Renum-class