[clang] [clang][CodeGen] Simplify code based on opaque pointers (PR #65624)

[Jessica Clarke via cfe-commits]

================
@@ -51,14 +51,11 @@ struct CodeGenTypeCache {
     llvm::IntegerType *PtrDiffTy;
   };
 
-  /// void* in address space 0
+  /// void*, void** in address space 0
   union {
+    llvm::PointerType *UnqualPtrTy;
----------------
jrtc27 wrote:

(Presumably the IR type's nomenclature has its origins in C's language)

https://github.com/llvm/llvm-project/pull/65624