[clang] [clang][bytecode] Add `StringPointer` (PR #216736)

[Timm Baeder via cfe-commits]

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@@ -324,14 +348,34 @@ std::optional<uint64_t> Context::evaluateStrlen(State &Parent, const Expr *E) {
   std::optional<uint64_t> Result;
   auto PtrRes = C.interpretAsPointer(E, [&](InterpState &S, CodePtr OpPC,
                                             const Pointer &Ptr) {
-    if (!Ptr.isBlockPointer())
+    if (!Ptr.isReadablePointerType())
+      return false;
+
+    if (Ptr.isPastEnd())
       return false;
 
+    if (Ptr.isStringPointer()) {
+
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tbaederr wrote:

What's the typo?

https://github.com/llvm/llvm-project/pull/216736