[PATCH] D35882: [TargetParser] Use enum classes for various ARM kind enums.

[Javed Absar via Phabricator via llvm-commits]

javed.absar added a comment.

Looks like a nice clean-up. 
Its a pity we still need 'invalid' despite using enum class.

LGTM, but will wait for others to comment.


https://reviews.llvm.org/D35882