[clang] [clang][Interp] Add IntegralAP for arbitrary-precision integers (PR #65844)

[Erich Keane via cfe-commits]

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@@ -102,7 +102,8 @@ std::optional<PrimType> Context::classify(QualType T) const {
     case 8:
       return PT_Sint8;
     default:
-      return std::nullopt;
+      return PT_IntAPS;
+      // return std::nullopt;
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erichkeane wrote:

If we're removing these, I wonder if we need a 'LLVM_FALLTHROUGH' in case others add to it later?

https://github.com/llvm/llvm-project/pull/65844