check for toString when using `trace(abstract type)` on optimized Js
check for toString when using `trace(abstract type)` on optimized Js

pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe