[gcc r15-7537] c++: add fixed test [PR82794]

[Marek Polacek via Gcc-cvs]

https://gcc.gnu.org/g:77ba1ab85d3a45005bfff90b2fd262e102e5383a

commit r15-7537-g77ba1ab85d3a45005bfff90b2fd262e102e5383a
Author: Marek Polacek <pola...@redhat.com>
Date:   Fri Feb 14 16:04:41 2025 -0500

    c++: add fixed test [PR82794]
    
    Fixed by r10-3735.
    
            PR c++/82794
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/cpp2a/concepts-pr82794.C: New test.

Diff:
---
 gcc/testsuite/g++.dg/cpp2a/concepts-pr82794.C | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gcc/testsuite/g++.dg/cpp2a/concepts-pr82794.C 
b/gcc/testsuite/g++.dg/cpp2a/concepts-pr82794.C
new file mode 100644
index 000000000000..b84e9ec45f6d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/concepts-pr82794.C
@@ -0,0 +1,8 @@
+// PR c++/82794
+// { dg-do compile { target c++20 } }
+
+template<typename F, typename G = F>
+concept Foo = true;
+
+template<Foo fun>
+using foo = void;