[llvm] DynamicAPInt: optimize size of structure (PR #97831)

[Arjun P via llvm-commits]

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@@ -203,6 +211,14 @@ class DynamicAPInt {
 
   friend hash_code hash_value(const DynamicAPInt &x); // NOLINT
 
+  void static_assert_layout() { // NOLINT
+    constexpr size_t ValLargeOff =
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Superty wrote:

this should probably be BitWidthOffset. You can write out the full words for the variables here -- offset, size

https://github.com/llvm/llvm-project/pull/97831