src/vs/editor/contrib/zoneWidget/browser/zoneWidget.ts/ZoneWidget/revealLine
class ZoneWidget:	protected revealLine(lineNumber: number, isLastLine: boolean) {
		if (isLastLine) {
			this.editor.revealLineInCenter(lineNumber, ScrollType.Smooth);
		} else {
			this.editor.revealLine(lineNumber, ScrollType.Smooth);
		}
	}