[PATCH] D82895: [NFC][LoopInfo] Document empty()

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert added subscribers: etiotto, Whitney.
jdoerfert added a comment.

> I think that isInnermost() would make even more sense.

I'm fine with adding `bool isInnermost() const { return empty(); }` and while we are at it, `bool isOutermost()`.

@fhahn @Meinersbur @Whitney @etiotto Objections?


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