language-todo does not work with tree-sitter

[binaryfunt]

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: http://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: http://flight-manual.atom.io/hacking-atom/sections/debugging/
  • Checked the FAQs on the message board for common solutions: https://discuss.atom.io/c/faq
  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

Highlighting has stopped working in JavaScript and Python files

Steps to Reproduce

1. Open a JavaScript/Python file or an unsaved new file and set the language to JavaScript/Python
2. Type TODO in a comment

Expected behavior: TODO is highlighted, is in its own <span> with class syntax--storage

Actual behavior: TODO is grey/the same colour as the rest of the comment, is in the same <span> as the rest of the comment without class syntax--storage

Versions

Atom: 1.29.0
Electron: 2.0.5
Chrome: 61.0.3163.100
Node: 8.9.3

Additional information

Highlighting still works for C#

[winstliu]

Are you using the new Tree-Sitter Parsers option?

[binaryfunt]

Ah. Yes, I'm using Tree Sitter Parsers. If I turn it off then highlighting of TODO etc works again. Tree Sitter is still enabled in safe mode, so I didn't pick up on that.

[lgeiger]

Are there plans to support, tree-sitter grammars?

I'd be happy to help with this, since we're trying to achieve the same in the hydrogen package. See atom/atom#18196

[macdonaldtomw]

So, how can we disable tree-sitter until things get sorted out? What version of atom should we be rolling back to?

EDIT: never mind, figured it out (see below)

you need to untick the "Use Tree Sitters Parsers" option in Atom Core Settings: