Ruby: add test for self.class call

Author: asgerf

ruby/ql/test/library-tests/dataflow/api-graphs/self-dot-class.rb

@@ -0,0 +1,10 @@
+module SelfDotClass
+    module Mixin
+        def foo
+            self.class.bar # $ call=Member[Foo].Method[bar]
+        end
+    end
+    class Subclass < Foo
+        include Mixin
+    end
+end