[OCaml] Runtime tests for default_arg_values, inherit_missing and some others

Add runtime tests for default_arg_values, inherit_missing,
memberin_extend, rename_predicates, template_inherit,
template_tbase_template, and typedef_classforward_same_name.

Examples/test-suite/ocaml/template_inherit_runme.ml

@@ -0,0 +1,22 @@
+open Swig
+open Template_inherit
+
+let _ =
+  let a = new_FooInt '() and b = new_FooDouble '() and c = new_BarInt '()
+  and d = new_BarDouble '() and e = new_FooUInt '() and f = new_BarUInt '() in
+  assert (a -> blah () as string = "Foo");
+  assert (b -> blah () as string = "Foo");
+  assert (e -> blah () as string = "Foo");
+  assert (c -> blah () as string = "Bar");
+  assert (d -> blah () as string = "Bar");
+  assert (f -> blah () as string = "Bar");
+  assert (c -> foomethod () as string = "foomethod");
+  assert (d -> foomethod () as string = "foomethod");
+  assert (f -> foomethod () as string = "foomethod");
+  assert (_invoke_blah_int '(a) as string = "Foo");
+  assert (_invoke_blah_int '(c) as string = "Bar");
+  assert (_invoke_blah_double '(b) as string = "Foo");
+  assert (_invoke_blah_double '(d) as string = "Bar");
+  assert (_invoke_blah_uint '(e) as string = "Foo");
+  assert (_invoke_blah_uint '(f) as string = "Bar")
+;;