add a minimal test for haxe.CallStack: check that callStack/exceptionStack always return an array at least
add a minimal test for haxe.CallStack: check that callStack/exceptionStack always return an array at least

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