[gcc r12-5794] c++: Add fixed test [PR93614]

[Marek Polacek]

https://gcc.gnu.org/g:066b3258bb1494cf3b49b6ac26da38be01f7ad8e

commit r12-5794-g066b3258bb1494cf3b49b6ac26da38be01f7ad8e
Author: Marek Polacek <polacek@redhat.com>
Date:   Sat Dec 4 15:29:18 2021 -0500

    c++: Add fixed test [PR93614]
    
    This was fixed by r11-86.
    
            PR c++/93614
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/template/lookup18.C: New test.

Diff:
---
 gcc/testsuite/g++.dg/template/lookup18.C | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/gcc/testsuite/g++.dg/template/lookup18.C b/gcc/testsuite/g++.dg/template/lookup18.C
new file mode 100644
index 00000000000..38f7347ef51
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/lookup18.C
@@ -0,0 +1,17 @@
+// PR c++/93614
+
+template<class T>
+class foo{};
+
+template<class T>
+class template_class_with_struct
+{
+    void my_method() {
+        if(this->b.foo < 1);
+    };
+
+    struct bar
+    {
+        long foo;
+    } b;
+};