code: function createLinkSet(loader, startingLoad) {
        var linkSet = {
          loader: loader,
          loads: [],
          loadingCount: 0
        };
        linkSet.done = new Promise(function(resolve, reject) {
          linkSet.resolve = resolve;
          linkSet.reject = reject;
        });
        addLoadToLinkSet(linkSet, startingLoad);
        return linkSet;
      }
docs: Declarative linking functions run through alternative implementation: 15.2.5.1.1 CreateModuleLinkageRecord not implemented 15.2.5.1.2 LookupExport not implemented 15.2.5.1.3 LookupModuleDependency not implemented 15.2.5.2.1