No styling on large libsonnet file

[steinybot]

I'm trying to use https://github.com/ksonnet/ksonnet which has a very large k8s.libsonnet file. This thing is a beast, around 30,000 LOC, and I don't seem to get any syntax highlighting or code folding.

I first had to add a Custom Property with:

idea.max.intellisense.filesize=5000

but that didn't seem to help.

It's a bit strange. I swear this used to work at least partially. I was previously able to at least collapse code blocks. Now it does nothing.