Outlines go around shadows on (non-RichText) Labels

[FringeSci-com]

Godot version:
3.2

OS/device including version:
Windows 10
AMD FX-8320
GTX 1060 6GB

Issue description:
3.2 caused (non-RichText) Label nodes with an outline and a shadow to have the outline to go around the shadow, instead of the outline going around the text and the shadow going underneath the outline.

RichTextLabel nodes still have expected functionality. If you open the project in 3.1 then regular Labels also work as expected.

Steps to reproduce:
Create a (regular, non-RichText) Label with a shadow and outline.

Minimal reproduction project:
outline_text_bug.zip

[Calinou]

I guess this is a side-effect of #30168, as I didn't figure out a way to draw the outline with the font shadow's color. Sorry 🙁

(This is usually not an issue when using black outlines.)