Add test for `loadmovienum`

core/tests/regression_tests.rs

@@ -161,6 +161,7 @@ swf_tests! {
     (define_function2_preload_order, "avm1/define_function2_preload_order", 1),
     (mcl_as_broadcaster, "avm1/mcl_as_broadcaster", 1),
     (loadmovie, "avm1/loadmovie", 2),
+    (loadmovienum, "avm1/loadmovienum", 2),
 }
 
 // TODO: These tests have some inaccuracies currently, so we use approx_eq to test that numeric values are close enough.

core/tests/swfs/avm1/loadmovienum/output.txt

@@ -0,0 +1,2 @@
+Loading movie
+Child movie loaded!