Add tests to repository

tests/vala/generics.vala

@@ -0,0 +1,22 @@
+interface Foo : Object {
+	public void foo<T> (owned T bar) {
+	       bar = null;
+	}
+}
+
+class Baz : Object, Foo {
+}
+
+void foo<T> (owned T bar) {
+	bar = null;
+}
+
+void main () {
+	var bar = new Object ();
+	foo<Object> (bar);
+	assert (bar.ref_count == 1);
+
+	var baz = new Baz ();
+	baz.foo<Object> (bar);
+	assert (baz.ref_count == 1);
+}