Empty error popup when provideDebugAdapterTracker fails

[roblourens]

#59110

• Register a DA tracker that returns a rejected Promise

provideDebugAdapterTracker(session: vscode.DebugSession, folder: vscode.WorkspaceFolder | undefined, config: vscode.DebugConfiguration, token?: CancellationToken): ProviderResult<vscode.IDebugAdapterTracker> {
    return Promise.reject(new Error('failed'));
}

Start debugging, get empty popup