src/vs/workbench/contrib/search/browser/searchView.ts/SearchView/createFileIterator
class SearchView:	private createFileIterator(fileMatch: FileMatch): Iterable<ITreeElement<RenderableMatch>> {
		const matches = fileMatch.matches().sort(searchMatchComparer);
		return Iterable.map(matches, r => (<ITreeElement<RenderableMatch>>{ element: r }));
	}