[gcc r14-8049] gccrs: Add a new regression test

[Arthur Cohen]

https://gcc.gnu.org/g:c53cef37b801647d869627ed0f3b2a794840e73e

commit r14-8049-gc53cef37b801647d869627ed0f3b2a794840e73e
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Tue Oct 10 13:20:33 2023 +0200

    gccrs: Add a new regression test
    
    Add a new test to highlight the fix made for #2660.
    
    gcc/testsuite/ChangeLog:
    
            * rust/compile/range_from_expr_for_loop.rs: New test.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 gcc/testsuite/rust/compile/range_from_expr_for_loop.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gcc/testsuite/rust/compile/range_from_expr_for_loop.rs b/gcc/testsuite/rust/compile/range_from_expr_for_loop.rs
new file mode 100644
index 00000000000..69b4b0c12c2
--- /dev/null
+++ b/gcc/testsuite/rust/compile/range_from_expr_for_loop.rs
@@ -0,0 +1,7 @@
+// { dg-additional-options "-frust-compile-until=ast" }
+fn main() {
+    for _ in 1.. {
+        break;
+    }
+    let i = 2;
+}