add tests from scala/test/files/{pos,neg}

with explicit Unit return type

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/untried/pos/t6575a.scala b/tests/untried/pos/t6575a.scala
new file mode 100644
index 000000000..f128714da
--- /dev/null
+++ b/tests/untried/pos/t6575a.scala
@@ -0,0 +1,15 @@
+trait X { def foo: PartialFunction[Int, Int] }
+
+trait Y extends X {
+  // Inferred type was AbstractPartialFunction[Int, Int] with Serializable
+  abstract override def foo = { case i => super.foo(i) * 2 }
+}
+trait Z extends X {
+  // ditto
+  abstract override def foo = { case i => super.foo(i) + 3 }
+}
+
+trait Comb extends Y with Z {
+  // ... which led to a type error here.
+  abstract override def foo: PartialFunction[Int, Int] = { case i => super.foo(i) - 2 }
+}