Missing well-known globals

[acarstoiu]

Hello,

I have no idea why this hasn't been noticed before, but some well-known globals are missing from vars.js. Here's what I've added:

• BigInt for ES 11
• Intl for node
• specify and it's counterpart xspecify for mocha
• URLSearchParams for browser and node

This change is really easy to merge and I'm looking forward to seeing it in the next release.

[coveralls]

Coverage remained the same at 100.0% when pulling 15c66bb on acarstoiu:master into 057b1c6 on jshint:master.

[jugglinmike]

Thanks!

[coolaj86]

Not that it matters too much, but URLSearchParams was introduced in v10.0.0+

[acarstoiu]

Damn, I really checked the history section of URLSearchParams. I saw it was introduced in v6.13.0, but didn't notice that it became a global variable only in v10.0.0.

[jugglinmike]

@coolaj86 Accurate documentation matters plenty! Thanks for checking our work :) Fixed via commit 06accfa

[acarstoiu]

⚠️ There's a problem: I've just tested with the latest release 2.13.2 and in spite of these lines

  11: {
    BigInt             : false
  }

it does not work, BigInt is reported as "not defined" ❌