Animation Player Keyframe callback track doesn't allow setting a callback from attached script unless script has same name as AnimationPlayer node using C#

[instantaphex]

Godot version:
3.2.1
OS/device including version:
MacOS Catalina 10.15
Issue description:
When adding a Call Method Track to the AnimationPlayer, I'm not able to use methods from attached script unless that script has the same name as the AnimationPlayer node itself.
Steps to reproduce:
1.) Create an animation player
2.) Attach a C# script with a name that differs from the node name
3.) Add a Call Method Track to the animation player
4.) Add a keyframe and notice that none of the Script Methods are available for selection
5.) Change the name of the script to match the node name and add a keyframe. The methods are now available

[IRONIC3D]

I had similar issue with GDScripts Built-in. After saving I have to quit and open Godot, the call-back function will see the script functions. That seems to solve the problem for me.

[akien-mga]

Fixed by #52607.