src/vs/workbench/services/userDataSync/browser/userDataSyncWorkbenchService.ts/UserDataSyncPreview/toUserDataSyncResourceGroups
class UserDataSyncPreview:	private toUserDataSyncResourceGroups(syncResourcePreviews: [SyncResource, IResourcePreview[]][]): IUserDataSyncResource[] {
		return flatten(
			syncResourcePreviews.map(([syncResource, resourcePreviews]) =>
				resourcePreviews.map<IUserDataSyncResource>(({ localResource, remoteResource, previewResource, acceptedResource, localChange, remoteChange, mergeState }) =>
					({ syncResource, local: localResource, remote: remoteResource, merged: previewResource, accepted: acceptedResource, localChange, remoteChange, mergeState })))
		);
	}