Syntax highlighting for lang="tsx" is wonky

[hisuwh]

• I have searched through existing issues
• I have read through docs
• I have read FAQ
• I have tried restarting VS Code or running Vetur: Restart VLS

Info

• Platform: Win
• Vetur version: v0.33.1
• VS Code version: 1.55.2

Problem

I have a dependency that allows me to show a popup and inject some elements. I can obviously use this.$createElement but I would like to use JSX (or more specifically TSX because I'm using typescript).

With lang="ts" I get errors as I would expect:

With lang="tsx" these errors go away, and everything builds and still have code completion but the syntax highlighting is completed messed up.

Reproducible Case

Not clear how I can reproduce this?