Don't avoid a semicolon after static field gen.

class Main {
    static function main() {}
}

generated

Main.main = function () {
}

instead of

Main.main = function () {
};

(Another JSHint error)

genjs.ml

@@ -883,7 +883,6 @@ let gen_class_static_field ctx c f =
 			ctx.id_counter <- 0;
 			print ctx "%s = " path;
 			gen_value ctx e;
-			ctx.separator <- false;
 			newline ctx;
 			handle_expose ctx path f.cf_meta
 		| _ ->