src/vs/base/browser/fastDomNode.ts/FastDomNode/setTextDecoration
class FastDomNode:	public setTextDecoration(textDecoration: string): void {
		if (this._textDecoration === textDecoration) {
			return;
		}
		this._textDecoration = textDecoration;
		this.domNode.style.textDecoration = this._textDecoration;
	}