[clang-tools-extra] Add check 'cppcoreguidelines-use-enum-class' (PR #138282)

[Carlos Galvez via cfe-commits]

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@@ -0,0 +1,18 @@
+// RUN: %check_clang_tidy -std=c++11-or-later %s cppcoreguidelines-use-enum-class %t -- \
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carlosgalvezp wrote:

I believe it should be possible to merge these two test files, and provide a specific CHECK-MESSAGES-FULL (or similar) that only warns when the option is not enabled.

https://github.com/llvm/llvm-project/pull/138282