added one test, changed to check files.

1 files changed, 14 insertions, 0 deletions

diff --git a/test/files/neg/saito.scala b/test/files/neg/saito.scala
new file mode 100644
index 0000000000..a8bcc79d65
--- /dev/null
+++ b/test/files/neg/saito.scala
@@ -0,0 +1,14 @@
+class B {}
+class A requires B {
+    def m(): B = {
+        this
+    }
+}
+
+object Exec{
+    def main(args: Array[String]): Unit = {
+        val a: A = new A; // should not be allowed
+        val b: B = a.m();
+    }
+}
+