We tried
(Object allSubclasses select: #isVariable)
reject: [ :each | each instVarNames isEmpty ]
and we discovered that we have no class in the system with named
instance variables and indexed ones.
May be we are wrong. We are interested if you find one.
Now we created one
Object variableSubclass: #PPpoint
instanceVariableNames: 'x y'
classVariableNames: ''
package: 'Web'
and this is strange because inspecting PPoint new: 3 looks wrong since
the variable zone arrives before
the named one as displayed.