compile with loose mode

[hzoo]

If we move the implementation maybe we want to be as close as possible to what it was before?

https://github.com/babel/babel/blob/26b4e0909ef8ec3a45b08f2a475124ed83defdac/package.json#L51-L66

{
"comments": false,
    "presets": [
      [
        "es2015",
        {
          "loose": true
        }
      ],
      "stage-0"
    ],
    "plugins": [
      "./scripts/add-module-exports",
      "transform-runtime",
      "transform-class-properties",
      "transform-flow-strip-types"
    ],
}

the other plugins/presets won't matter if the syntax isn't used so we can ignore that.

[hzoo]

thoughts on whether we also need to use add-module-exports or we do a require('x').default or we use imports syntax for babel/babel#4881 (comment)?

Or maybe it's just me, it seems to work?