In JS, module.exports should support property assignments as declaration

[sandersn]

// @noEmit: true
// @allowJs: true
// @checkJs: true
// @strict: true
// @Filename: a.js

// from debug
var debug = module.exports = create.debug = create['default'] = create;
function create() {
    function d() {
        var curr = +new Date()
        d.curr = curr
    }
    return d
}
function assert() {
}
debug.assert = assert

Expected behavior:
No errors, and the debug module should have exports { debug, default, assert } and also be callable.

Actual behavior:
Lots of different errors, and no exported members. Moving the function create before the exports assignments adds the export debug, but that's it.