Default C# script naming system can cause invalid class name

[rick551a]

Godot version: 3.2.3 mono stable

OS/device including version: Windows 10 x64

Issue description:

1) Create a new scene by right clicking file dock & selecting New Scene...

2) In the popup for scene name, enter a name with spaces (e.g: "my scene")

3) Now create a new .cs script in this new scene. Use the defaults.

4) As the .cs file loads in editor observe red squiggly error lines as the class name is now
my scene : Node2D
A class name cannot have a space.

Maybe to resolve this the new script dialog should not allow script names with spaces by default?

Steps to reproduce:

Minimal reproduction project:

[akien-mga]

Confirmed in 3.2.4 beta 3. Should be fairly easy to solve for anyone interested in Mono editor code.