no cast

std/haxe/format/JsonPrinter.hx

@@ -39,9 +39,10 @@ class JsonPrinter {
 		case TClass(c):
 			if( c == String )
 				quote(v);
-			else if( c == Date )
-				quote(cast(v, Date).toString());
-			else if( c == Array ) {
+			else if( c == Date ) {
+				var v : Date = v;
+				quote(v.toString());
+			} else if( c == Array ) {
 				var v : Array<Dynamic> = v;
 				addChar('['.code);
 				var len = v.length;