DesignSpace.next() does not produce correct value for expressions

[finkn]

When a parameter is defined relative to another parameter, next will not generate correct values for the dependent parameter. Expressions are evaluated as though all references are resolved to 0.

See referencesResolveToZero in
https://github.com/finkn/InPUTspec/blob/master/main/src/net/finkn/inputspec/v050/AdvancedSingleRangeNextTest.java for details.