src/vs/base/common/comparers.ts/compareFileNamesUpper
export function compareFileNamesUpper(one: string | null, other: string | null) {
	const collatorNumeric = intlFileNameCollatorNumeric.value.collator;
	one = one || '';
	other = other || '';

	return compareCaseUpperFirst(one, other) || compareAndDisambiguateByLength(collatorNumeric, one, other);
}