extensions/markdown-language-features/src/languageFeatures/diagnostics.ts/DiagnosticManager/triggerForReferencingFiles
class DiagnosticManager:	private triggerForReferencingFiles(uri: vscode.Uri): Promise<void> {
		return this.reporter.addWorkItem(
			(async () => {
				const triggered = new ResourceMap<Promise<void>>();
				for (const ref of await this.referencesProvider.getReferencesToFileInDocs(uri, this.reporter.getOpenDocuments(), noopToken)) {
					const file = ref.location.uri;
					if (!triggered.has(file)) {
						triggered.set(file, this.triggerDiagnostics(file));
					}
				}
				await Promise.all(triggered.values());
			})());
	}