Upgrade: esquery@1.2.0

[mdjermanovic]

Prerequisites checklist

• I have read the contributing guidelines.
• The team has reached consensus on the changes proposed in this pull request. If not, I understand that the evaluation process will begin with this pull request and won't be merged until the team has reached consensus.

What is the purpose of this pull request? (put an "X" next to an item)

[X] Other, please explain:

Upgrade esquery to 1.2.0

What changes did you make? (Give an overview)

Upgraded esquery to 1.2.0 and fixed some problems.

This version has been released today and is causing ESLint builds to fail, for two reasons:

1. Errors thrown by esquery.parse do not have offset property anymore, I think this was a change in pegjs.

Some tests were (correctly) failing because of this. It's fixed by using err.location.start.offset.

2. esquery now distributes ESM modules, too.

Webpack by default looks for "module" (ESM) first. Unfortunately, that module is using export default, which turns require("esquery") into something like:

{ default: { parse, match, matches, query } }

instead of expected:

{ parse, match, matches, query }

This produces an invalid build/eslint.js bundle.

Might be relevant issue: webpack/webpack#4742

It's fixed by configuring webpack to always look for "main" first.

Is there anything you'd like reviewers to focus on?

The size of build/eslint.js increased by only ~1KB.