--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import kernel
+
+class A
+ init do 1.output
+end
+
+class B
+ init do 2.output
+end
+
+class C
+ super A
+ super B
+
+ init do 3.output
+end
+
+class D
+ super A
+ super B
+
+ var i: Int
+end
+
+class E
+ super A
+ super B
+
+ var i: Int
+ init(i: Int) do
+ self.i = i
+ i.output
+ end
+end
+
+class F
+ super E
+ #alt1# var z: Int
+end
+
+var a = new A
+var b = new B
+var c = new C
+var d = new D(4)
+var e = new E(5)
+var f = new F(6)