tests: Update AVM2 currentLabels test for case insensitivity

tests/tests/regression_tests.rs

@@ -405,7 +405,7 @@ swf_tests! {
     (as3_mouseevent_valueof_tostring, "avm2/mouseevent_valueof_tostring", 1),
     (as3_movieclip_child_property, "avm2/movieclip_child_property", 1),
     (as3_movieclip_constr, "avm2/movieclip_constr", 1),
-    (as3_movieclip_currentlabels, "avm2/movieclip_currentlabels", 5),
+    (as3_movieclip_currentlabels, "avm2/movieclip_currentlabels", 7),
     (as3_movieclip_currentscene, "avm2/movieclip_currentscene", 5),
     (as3_movieclip_dispatchevent_cancel, "avm2/movieclip_dispatchevent_cancel", 1),
     (as3_movieclip_dispatchevent_handlerorder, "avm2/movieclip_dispatchevent_handlerorder", 1),

tests/tests/swfs/avm2/movieclip_currentlabels/output.txt

@@ -3,6 +3,16 @@
 frame1
 3
 frame3
+4
+CaseSensitive
+5
+CASEsensitive
+//(contents of this.currentLabel)
+frame1
+
 //(contents of this.currentLabels in scene 2)
 1
-frame4
+Frame4
+//(contents of this.currentLabel)
+Frame4
+