[swfinterp] Intepret more multinames

test/swftests/DictCall.as

@@ -0,0 +1,10 @@
+// input: [{"x": 1, "y": 2}]
+// output: 3
+
+package {
+public class DictCall {
+    public static function main(d:Object):int{
+    	return d.x + d.y;
+    }
+}
+}