[gcc r15-847] Add testcase for PR c++/105229: ICE in lookup_template_class_1

[Simon Martin via Gcc-cvs]

https://gcc.gnu.org/g:88c9b96b2800ddb7a499bd10abaa9441a471d5fe

commit r15-847-g88c9b96b2800ddb7a499bd10abaa9441a471d5fe
Author: Simon Martin <simar...@gcc.gnu.org>
Date:   Fri May 24 10:56:36 2024 +0200

    Add testcase for PR c++/105229: ICE in lookup_template_class_1
    
    The test case in PR c++/105229 has been fixed since 11.4 (via
    PR c++/106024) - the attached patch simply adds the case to
    the test suite.
    
    Successfully tested on x86_64-pc-linux-gnu.
    
            PR c++/105229
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/parse/crash72.C: New test.

Diff:
---
 gcc/testsuite/g++.dg/parse/crash72.C | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/gcc/testsuite/g++.dg/parse/crash72.C 
b/gcc/testsuite/g++.dg/parse/crash72.C
new file mode 100644
index 00000000000..df469e20f28
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/crash72.C
@@ -0,0 +1,12 @@
+// PR c++/105229
+// { dg-do compile { target c++20 } }
+// { dg-additional-options "-Wno-missing-template-keyword" }
+
+template <typename> void bar ()
+{
+  [] <int> {}.operator () <> (); // { dg-error "expected primary-expression" }
+}
+void foo ()
+{
+  bar<int> ();
+}