[llvm] [ValueTracking] Use SimplifyQuery in some public APIs (NFC) (PR #68290)

[Nikita Popov via llvm-commits]

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@@ -39,7 +40,6 @@ struct KnownBits;
 class Loop;
 class LoopInfo;
 class MDNode;
-struct SimplifyQuery;
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nikic wrote:

Okay, if nobody feels strongly about this, I'd prefer to keep the current version.

https://github.com/llvm/llvm-project/pull/68290