KtForExpression(15,32): 'for (x in Y()) {}'
  KaCompoundSymbolResolutionError:
    attempts = [
      KaSymbolResolutionError:
        candidateSymbols = []
        diagnostic = ERROR<UNRESOLVED_REFERENCE: Unresolved reference 'iterator' on receiver of type 'Y'.>,
      KaSymbolResolutionError:
        candidateSymbols = []
        diagnostic = ERROR<UNRESOLVED_REFERENCE: Unresolved reference 'hasNext'.>,
      KaSymbolResolutionError:
        candidateSymbols = []
        diagnostic = ERROR<UNRESOLVED_REFERENCE: Unresolved reference 'next'.>
    ]
