*/
public static compareRangesUsingStarts(a: IRange | null | undefined, b: IRange | null | undefined): number {
const aStartLineNumber = a.startLineNumber | 0;
const bStartLineNumber = b.startLineNumber | 0;
if (aStartLineNumber === bStartLineNumber) {
const aStartColumn = a.startColumn | 0;
const bStartColumn = b.startColumn | 0;