[gcc r15-2605] gccrs: Add a test for inherent impl type name resolve

[Arthur Cohen via Gcc-cvs]

https://gcc.gnu.org/g:8d0a6e905ea44fb1cb4bad9c026e03fa07aed8d1

commit r15-2605-g8d0a6e905ea44fb1cb4bad9c026e03fa07aed8d1
Author: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>
Date:   Thu Apr 18 22:39:47 2024 +0200

    gccrs: Add a test for inherent impl type name resolve
    
    A previous bug with name resolution 2.0 was caused by an incorrectly
    resolved inherent impl name. This test shall highlight the behavior
    and prevent regression.
    
    gcc/testsuite/ChangeLog:
    
            * rust/compile/name_resolution25.rs: New test.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>

Diff:
---
 gcc/testsuite/rust/compile/name_resolution25.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gcc/testsuite/rust/compile/name_resolution25.rs 
b/gcc/testsuite/rust/compile/name_resolution25.rs
new file mode 100644
index 000000000000..3cacac7f64bd
--- /dev/null
+++ b/gcc/testsuite/rust/compile/name_resolution25.rs
@@ -0,0 +1,5 @@
+// { dg-options "-frust-name-resolution-2.0" }
+
+struct Test; // { dg-warning "struct is never constructed: .Test." }
+
+impl Test {}