Add panic if too many values are returned and more verbose error on invalid return type given.
Add panic if too many values are returned and more verbose error on invalid return type given.

ShadowApex/godot-go,ShadowApex/godot-go,pastaq/godot-go,ShadowApex/go-godot,pastaq/godot-go,ShadowApex/go-godot,ShadowApex/godot-go,ShadowApex/godot-go