1 files changed, 7 insertions, 0 deletions
diff --git a/tests/ui/parser/builtin-syntax.rs b/tests/ui/parser/builtin-syntax.rs
new file mode 100644
index 00000000000..c0b91a58073
--- /dev/null
+++ b/tests/ui/parser/builtin-syntax.rs
@@ -0,0 +1,7 @@
+fn main() {
+    builtin # foobar(); //~ ERROR unknown `builtin #` construct
+}
+
+fn not_identifier() {
+    builtin # {}(); //~ ERROR expected identifier after
+}