testing

[patricklx]

need tests for

gts/gjs

• file psi should have stub
• test references hbs <> js
• test references hbs <> ts
• test references to TOC
• test reference search + unused imports + unused vars, need to verify that they do not get marked as unused
• import suggestions including importing gts/gjs
• auto import including auto import gts/gjs
• identifiers auto completion coming from gts/gjs
• formatting
• linting
  Hbs:
• test rename id/tag