src/vs/workbench/api/common/extHostLanguageFeatures.ts/ExtHostLanguageFeatures/$resolveCompletionItem
class ExtHostLanguageFeatures:	$resolveCompletionItem(handle: number, id: extHostProtocol.ChainedCacheId, token: CancellationToken): Promise<extHostProtocol.ISuggestDataDto | undefined> {
		return this._withAdapter(handle, SuggestAdapter, adapter => adapter.resolveCompletionItem(id, token), undefined);
	}