src/vs/workbench/contrib/comments/browser/commentsEditorContribution.ts/CommentingRangeDecorator/updateHover
class CommentingRangeDecorator:	public updateHover(hoverLine?: number) {
		if (this._editor && this._infos && (hoverLine !== this._lastHover)) {
			this._doUpdate(this._editor, this._infos, hoverLine);
		}
		this._lastHover = hoverLine ?? -1;
	}