KtCallableReferenceExpression(79,87): 'Foo::foo'
  KaApplicableCallCandidate:
    candidate = KaCallableReferenceCall:
      contextArguments = []
      dispatchReceiver = null
      extensionReceiver = null
      signature = KaVariableSignature:
        name = foo
        receiverType = null
        returnType = kotlin.String
        symbol = val foo: kotlin.String
        contextParameters = []
        callableId = /Foo.foo
      typeArgumentsMapping = {}
    isInBestCandidates = true