extensions/markdown-language-features/src/languageFeatures/workspaceSymbols.ts/MdWorkspaceSymbolProvider/constructor
class MdWorkspaceSymbolProvider:	public constructor(
		symbolProvider: MdDocumentSymbolProvider,
		workspace: IMdWorkspace,
	) {
		super();

		this._cache = this._register(new MdWorkspaceInfoCache(workspace, doc => symbolProvider.provideDocumentSymbolInformation(doc)));
	}