src/vs/editor/contrib/multicursor/multicursor.ts/SelectionHighlighterState/softEquals
class SelectionHighlighterState:	public static softEquals(a: SelectionHighlighterState | null, b: SelectionHighlighterState | null): boolean {
		if (!a && !b) {
			return true;
		}
		if (!a || !b) {
			return false;
		}
		return (
			a.searchText === b.searchText
			&& a.matchCase === b.matchCase
			&& a.wordSeparators === b.wordSeparators
			&& a.modelVersionId === b.modelVersionId
		);
	}