TopBottomPercentSumFunDef fails when passing a NamedSet to it.

[chubbard]

TopBottomPercentSumFunDef:76 fails and returns a null if you pass a NamedSet. Then when it goes to evaluate it then it throws a NullPointerException on line 121. The reason is because it's using a different way of compiling the list versus TopBottomCountFunDef which DOES work with NamedSets.

Example MDX Query:

WITH  SET TimeFrame as '{[EmploymentDate].[yearQuarterMonth].[2017].[1]:[EmploymentDate].[yearQuarterMonth].[2018].[4]}'
SELECT 
    NON EMPTY { [Measures].[terminations] } ON COLUMNS,
    NON EMPTY TopPercent( [TimeFrame], 25, [Measures].[terminations] ) on ROWS,
FROM [MyCube]

And the exception:

 Caused by: java.lang.NullPointerException
at mondrian.olap.fun.TopBottomPercentSumFunDef$CalcImpl.evaluateList(TopBottomPercentSumFunDef.java:121)
at mondrian.calc.impl.AbstractListCalc.evaluateIterable(AbstractListCalc.java:71)
at mondrian.rolap.RolapResult.executeAxis(RolapResult.java:857)
at mondrian.rolap.RolapResult.evalLoad(RolapResult.java:693)
at mondrian.rolap.RolapResult.loadMembers(RolapResult.java:649)
at mondrian.rolap.RolapResult.<init>(RolapResult.java:279)
at mondrian.rolap.RolapConnection.executeInternal(RolapConnection.java:500)

This was tested on Pentaho 4.3.1.10