KtNameReferenceExpression(127,133): 'Helper'
  KaInapplicableCallCandidate:
    candidate = KaSimpleFunctionCall:
      contextArgumentMapping = {}
      contextArguments = []
      dispatchReceiver = null
      extensionReceiver = null
      signature = KaFunctionSignature:
        receiverType = null
        returnType = Foo.Helper
        symbol = <constructor>(): Foo.Helper
        valueParameters = []
        contextParameters = []
        callableId = null
      typeArgumentsMapping = {}
      valueArgumentMapping = {}
    diagnostic = ERROR<OTHER_ERROR: Inapplicable candidate>
    isInBestCandidates = false
