typescript plugin still references rollup-pluginutils

[LukasHechenberger]

• Rollup Plugin Name: typescript
• Rollup Plugin Version: 2.0.0
• Rollup Version: 1.27.8
• Operating System (or Browser): macOS
• Node Version: 12.13.1

How Do We Reproduce?

• Install the typescript plugin npm i --save-dev @rollup/plugin-typescript typescript tslib
• Add it to rollup.config.js
• Run rollup -c

Expected Behavior

It should work ;)

Actual Behavior

> rollup -cw

[!] Error: Cannot find module 'rollup-pluginutils'
Require stack:
- /Users/lukas/Documents/Bachmann/atscm/transformer-help/node_modules/@rollup/plugin-typescript/dist/index.js
- /Users/lukas/Documents/Bachmann/atscm/transformer-help/rollup.config.js
- /Users/lukas/Documents/Bachmann/atscm/transformer-help/node_modules/rollup/dist/bin/rollup
Error: Cannot find module 'rollup-pluginutils'

Reason

The problem is, that index.js still imports 'rollup-pluginutils' instead of '@rollup/pluginutils'.

Workaround

Install rollup-pluginutils: npm i --save-dev rollup-pluginutils

Are you on this one or should I create a PR?

[shellscape]

A PR would be fantastic. Otherwise, I can get around to a fix for this later today.

[LukasHechenberger]

Okay, on it