[clang] [BoundsSafety][Sema] Allow counted_by and counted_by_or_null on pointers where the pointee type is incomplete but potentially completable (PR #106321)

[Dan Liew via cfe-commits]

================
@@ -8192,6 +8192,14 @@ ExprResult InitializationSequence::Perform(Sema &S,
             Kind.getRange().getEnd());
       } else {
         CurInit = new (S.Context) ImplicitValueInitExpr(Step->Type);
+        // Note the return value isn't used to return early
+        // to preserve the AST as best as possible even though an error
+        // might have occurred. For struct initialization it also allows
+        // all field assignments to be checked rather than bailing on the
+        // first error.
+        S.BoundsSafetyCheckInitialization(Entity, Kind, Sema::AA_Initializing,
----------------
delcypher wrote:

Marking this as resolved (even though it technically isn't) for ease of reviewing because this is being discussed under https://github.com/llvm/llvm-project/pull/106321#discussion_r1816031253

https://github.com/llvm/llvm-project/pull/106321