src/vs/workbench/api/common/extHostComments.ts/ExtHostCommentController/$updateCommentThreadTemplate
class ExtHostCommentController:	$updateCommentThreadTemplate(threadHandle: number, range: IRange): void {
		let thread = this._threads.get(threadHandle);
		if (thread) {
			thread.range = extHostTypeConverter.Range.to(range);
		}
	}