[clang] [Clang] Fix constexpr inc/dec operators for OverflowBehaviorTypes (PR #183826)

[Justin Stitt via cfe-commits]

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@@ -24,6 +24,8 @@ def note_constexpr_invalid_downcast : Note<
   "cannot cast object of dynamic type %0 to type %1">;
 def note_constexpr_overflow : Note<
   "value %0 is outside the range of representable values of type %1">;
+def note_constexpr_overflow_trap
+    : Note<"overflow on type %0 would trap at runtime">;
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JustinStitt wrote:

How does the wording in [`586fd4a`](https://github.com/llvm/llvm-project/pull/183826/commits/586fd4a63c790b8b7c3bacb61e2815b3b54a1766) look?

https://github.com/llvm/llvm-project/pull/183826