src/vs/editor/browser/config/editorConfiguration.ts/EditorOptionsUtil/checkEquals
class EditorOptionsUtil:	public static checkEquals(a: ComputedEditorOptions, b: ComputedEditorOptions): ConfigurationChangedEvent | null {
		const result: boolean[] = [];
		let somethingChanged = false;
		for (const editorOption of editorOptionsRegistry) {
			const changed = !EditorOptionsUtil._deepEquals(a._read(editorOption.id), b._read(editorOption.id));
			result[editorOption.id] = changed;
			if (changed) {
				somethingChanged = true;
			}
		}
		return (somethingChanged ? new ConfigurationChangedEvent(result) : null);
	}