src/vs/workbench/api/common/extHostLanguageFeatures.ts/ExtHostLanguageFeatures/$provideDocumentSymbols
class ExtHostLanguageFeatures:	$provideDocumentSymbols(handle: number, resource: UriComponents, token: CancellationToken): Promise<modes.DocumentSymbol[] | undefined> {
		return this._withAdapter(handle, DocumentSymbolAdapter, adapter => adapter.provideDocumentSymbols(URI.revive(resource), token), undefined);
	}