[clang] [clang][Sema] Fix for enums overflowing (#24667) (PR #78742)

[Aaron Ballman via cfe-commits]

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@@ -211,6 +217,8 @@ Bug Fixes in This Version
 - Clang now doesn't produce false-positive warning `-Wconstant-logical-operand`
   for logical operators in C23.
   Fixes (`#64356 <https://github.com/llvm/llvm-project/issues/64356>`_).
+- Fixes miscompilation when an enum has a specified value such that the auto
+  increment overflows a signed long. Fixes (`#24667 <https://github.com/llvm/llvm-project/issues/24667>`_)
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AaronBallman wrote:

```suggestion
- Fixes a miscompilation when an enum has a specified value such that the automatic
  increment overflows a ``signed long``. Fixes #GH24667.
```

https://github.com/llvm/llvm-project/pull/78742