[clang] [clang] fix crash in friend definition (PR #186398)

[via cfe-commits]

================
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -std=c++23 -fsyntax-only -verify %s
+
+
+template<class>
+struct D;
+
+template<class T>
+void foo(D<T>);
+
+template<class T>
+struct D {
+  friend void ::foo(D) {} // expected-error {{friend function definition cannot be qualified with '::'}}
+};
+
+int main() {
+  foo(D<int>{});
+}
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Serosh-commits wrote:

yeah i will be careful and make sure from now will include a trailing new line np!

https://github.com/llvm/llvm-project/pull/186398