gccrs: Add regression test

Add a new test to highlight fix for #2648.

gcc/testsuite/ChangeLog:

	* rust/compile/parse_pub_unit_type.rs: New test.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

diff --git a/gcc/testsuite/rust/compile/parse_pub_unit_type.rs b/gcc/testsuite/rust/compile/parse_pub_unit_type.rs
new file mode 100644 (file)
index 0000000..c79f199
--- /dev/null
+++ b/gcc/testsuite/rust/compile/parse_pub_unit_type.rs
@@ -0,0 +1 @@
+pub struct Foo(pub ());