#2 GML bad code-style warnings or compatibility mode

[Boddlnagg]

GML codes such as
if other.x<x+5&&other.x>x-5&&other.y<y+5&&other.y>y-5 instance_destroy()
are supported by Gamadus, but this style isn't recommended to use. Maybe there can be given warnings on such code styles, or a compatibility mode has to be activated to use codes like this.