gccrs: Add regression test for lifetime name validation

Lifetime name are restricted and cannot be keyword, this commit add a
test failing the ast validation pass due to some keyword name.

gcc/testsuite/ChangeLog:

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

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

1 files changed, 6 insertions, 0 deletions

diff --git a/gcc/testsuite/rust/compile/lifetime_name_validation.rs b/gcc/testsuite/rust/compile/lifetime_name_validation.rs
new file mode 100644
index 0000000..2d67bd6
--- /dev/null
+++ b/gcc/testsuite/rust/compile/lifetime_name_validation.rs
@@ -0,0 +1,6 @@
+pub fn one<'continue>() {} // { dg-error "lifetimes cannot use keyword names" }
+pub fn two<'_>() {}
+
+pub fn three<'static>() {}
+
+pub fn four<'loop>() {} // { dg-error "lifetimes cannot use keyword names" }