[clang] [BoundsSafety] Allow 'counted_by' attribute on pointers in structs in C (PR #90786)

[Dan Liew via cfe-commits]

================
@@ -335,6 +336,22 @@ Attribute Changes in Clang
 - Clang now warns that the ``exclude_from_explicit_instantiation`` attribute
   is ignored when applied to a local class or a member thereof.
 
+- The ``counted_by`` attribute can now be late parsed in C when
----------------
delcypher wrote:

I can mention it but I'm wondering if it should be in the release notes at all because this patch only makes parsing work. I've not done anything on the codegen side to make use of the attribute on pointers.

https://github.com/llvm/llvm-project/pull/90786