Fix export from assignment order for loose mode. (#6863)

* Consider reexports for bindingKindLookup.

* Update test cases according to reexports change

* Fix order for assign reexports.

* void 0 assignation to module keys only for loose mode.

* Create buildReexportsFromMeta helper.

* Update umd/amd fixtures.

* Refactor reexports build.

* Hoist template for reexports.

* Use map as a second argument of Array.from.

* Remove unnecessary export.

packages/babel-plugin-transform-modules-commonjs/src/index.js

@@ -16,7 +16,6 @@ export default function(api, options) {
     strict,
     strictMode,
     noInterop,
-
     // Defaulting to 'true' for now. May change before 7.x major.
     allowCommonJSExports = true,
   } = options;