[clang] [Sema] Default arguments for template parameters affect ContainsUnexpandedPacks (PR #99880)

[via cfe-commits]

================
@@ -44,6 +44,13 @@ using namespace clang;
 // TemplateParameterList Implementation
 //===----------------------------------------------------------------------===//
 
+namespace {
+template <class TemplateParam>
+bool DefaultArgumentContainsUnexpandedPack(const TemplateParam &P) {
----------------
cor3ntin wrote:

```suggestion
bool DefaultTemplateArgumentContainsUnexpandedPack(const TemplateParam &P) {
```


https://github.com/llvm/llvm-project/pull/99880