tests: Add test for default null-ish slot values

tests/tests/regression_tests.rs

@@ -525,6 +525,7 @@ swf_tests! {
     (as3_movieclip_constr, "avm2/movieclip_constr", 1),
     (as3_lazyinit, "avm2/lazyinit", 1),
     (as3_trace, "avm2/trace", 1),
+    (as3_default_values, "avm2/default_values", 1),
     (as3_displayobjectcontainer_getchildat, "avm2/displayobjectcontainer_getchildat", 1),
     (as3_displayobjectcontainer_getchildbyname, "avm2/displayobjectcontainer_getchildbyname", 1),
     (as3_displayobjectcontainer_addchild, "avm2/displayobjectcontainer_addchild", 1),

tests/tests/swfs/avm2/default_values/Test.as

@@ -0,0 +1,23 @@
+package {
+	public class Test {
+		var _any: *;
+		var _int: int;
+		var _uint: uint;
+		var _number: Number;
+		var _string: String;
+		var _object: Object;
+		var _array: Array;
+		
+		public function Test() {
+			trace(_int);
+			trace(_uint);
+			trace(_number);
+			trace(_string);
+			trace(_object);
+			trace(_any);
+			trace(_array);
+			trace("");
+		}
+
+	}
+}

tests/tests/swfs/avm2/default_values/output.txt

@@ -0,0 +1,8 @@
+0
+0
+NaN
+null
+null
+undefined
+null
+