special/webpack: entries should also be scanned

[sveyret]

Bug Description

In the entry section of webpack configuration, we may also specify dependencies which should be scanned. It is the case, for example, of the @babel/polyfill, of special fonts, etc.

Code snippets

Where the dependency is used:

module.exports = {
  entry: [
    '@babel/polyfill',
    'typeface-roboto',
    './src/index.ts',
    './src/images/favicon.png'
  ]
}

Where the dependency is listed in package.json:

"dependencies": {
  "typeface-roboto": "0.0.75"
},
"devDependencies": {
  "@babel/polyfill": "7.6.0",
}

Versions

• node -v: v8.12.0
• npm -v: 6.4.1
• depcheck --version: 0.8.4

Extra info

I am currently working on a PR for this issue.

[rumpl]

Closed with #449