one more test case for capture checking dependent functions

Author: Linyxus

tests/neg-custom-args/captures/cc-depfun.scala

@@ -0,0 +1,9 @@
+trait Cap { def use(): Unit }
+
+def main() = {
+  val f: (io: {*} Cap) -> {} () -> Unit =
+    io => () => io.use()  // error
+
+  val g: ({*} Cap) -> {} () -> Unit =
+    io => () => io.use()  // error
+}