Print a warning if a 3D editor gizmo has no name defined
Print a warning if a 3D editor gizmo has no name defined

Unnamed gizmos should be avoided, so this should help editor plugin
authors resolve issues with gizmo naming if they forgot to override
the function.

(cherry picked from commit e5406ba952085985d1269a0dff9112c138be6bff)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot