[llvm] [Attributor] Fix an issue that could potentially cause `AccessList` and `OffsetBins` out of sync (PR #106187)

[Sameer Sahasrabuddhe via llvm-commits]

================
@@ -294,11 +294,17 @@ struct RangeTy {
     return *this;
   }
 
-  /// Comparison for sorting ranges by offset.
+  /// Comparison for sorting ranges.
   ///
-  /// Returns true if the offset \p L is less than that of \p R.
-  inline static bool OffsetLessThan(const RangeTy &L, const RangeTy &R) {
-    return L.Offset < R.Offset;
+  /// Returns true if the offset of \p L is less than that of \p R. If the two
+  /// offsets are size, return true if the size of \p L is less than that of \p
----------------
ssahasra wrote:

```suggestion
  /// offsets are same, compare the sizes instead.
```

https://github.com/llvm/llvm-project/pull/106187