extensions/markdown-language-features/src/languageFeatures/references.ts/MdReferencesProvider/getReferencesToFileInDocs
class MdReferencesProvider:	public async getReferencesToFileInDocs(resource: vscode.Uri, otherDocs: readonly ITextDocument[], token: vscode.CancellationToken): Promise<MdReference[]> {
		this.logger.verbose('ReferencesProvider', `getAllReferencesToFileInFiles: ${resource}`);

		const links = (await this._linkCache.getForDocs(otherDocs)).flat();
		if (token.isCancellationRequested) {
			return [];
		}

		return Array.from(this.findLinksToFile(resource, links, undefined));
	}