[Pharo-dev] valid name for an instance variable?

[Nicolai Hess]

is x: (with colon) a valid inst var name ?
I can create the following object

Object subclass: #InstVarNameTest
    instanceVariableNames: 'x:'
    classVariableNames: ''
    category: 'TTT'

But of course, I can not write an assignment statement.

I am asking because if
Symbol>>#asMutator is called an a symbol with colon like x:
it returns
x::

It looks like that x:: is not even a valid message selector.
I would like to change the asMutator method to return
x: if it is called on x:
(or throw an error ?)

nicolai