[.NET] Add tests for GodotDisabledSourceGenerators

[paulloz]

• Add a test for each generator with it disabled, check we do not generate anything
• Add a test failing to disable ScriptPathAttributeGenerator
  • Tagged as skipped for now
  • Allow splitting GodotDisabledSourceGenerators by comma (Updates ExtensionMethods.cs) #88682

[raulsntos]

Thanks for adding tests for the GodotDisabledSourceGenerators property.

[raulsntos]

Not sure that this needs to be constant since we only use it once.

[paulloz]

We might want to write different analyzers later on, tho.

[raulsntos]

I think we should only add it when we need it then. But it's also not a big deal, we can keep it.

[paulloz]

@raulsntos the style check is inconsistent with the guidelines:

Do not use a space:

• Within single line initializer braces.

Should we change the guidelines, or the check? I'm generally more inclined to add spaces, but removed them in my last commit after recently re-reading the doc page.

[raulsntos]

We seem to have moved away from that guideline, probably because by the default VSCode adds spaces. So I'd say we should update the guidelines.

[paulloz]

Brought this up to date, and removed everything not related to those new tests.

[paulloz]

Just rebased on dev. Would be nice to have that one merged now that we're out of the 4.3 rush 🙏