[llvm] [KnownBits] Add KnownBits::makeConstantRange to determine the known bits from a pair of unsigned lo/hi bound values (PR #107080)

[Nikita Popov via llvm-commits]

================
@@ -291,6 +291,9 @@ struct KnownBits {
     return KnownBits(~C, C);
   }
 
+  /// Create known bits from a known INCLUSIVE pair of unsigned constants.
+  static KnownBits makeConstantRange(const APInt &Lower, const APInt &Upper);
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nikic wrote:

```suggestion
  static KnownBits makeInclusiveRange(const APInt &Lower, const APInt &Upper);
```
As this deviates from the usual convention, I think it's better to be more explicit about it.

https://github.com/llvm/llvm-project/pull/107080