message: Fix another compile error :-)
diff: @@ -731,8 +731,8 @@ suite('Protocol Converter', () => {
  signatures: [
  { label: 'label' }
  ],
  - activeSignature: null,
  - activeParameter: null
  + activeSignature: undefined,
  + activeParameter: undefined
  };
  let result = p2c.asSignatureHelp(signatureHelp);
  