Issue 3647 in pharo: Class var #Instance not allowed

Status: New
Owner: ----

New issue 3647 by [hidden email]: Class var #Instance not allowed
http://code.google.com/p/pharo/issues/detail?id=3647

If some class have a class variable named #Instance,
it is not loadable anymore.

It seems that problem is in Class>>bindingOf: method, where check is
done in a "declared environment", which happens to be a global
SystemDictionary, where a class Instance actually exists.

This means that no class var with a name which collides with a name of
class is allowed?


Class>>bindingOf:

        ...
        "Next look in declared environment."
        binding := self environment bindingOf: aSymbol.
        binding ifNotNil:[^binding].
        ...

Comment #1 on issue 3647 by [hidden email]: Class var #Instance not  
allowed
http://code.google.com/p/pharo/issues/detail?id=3647

Stack trace is here:  
http://forum.world.st/BUG-var-self-bindingOf-var-notNil-ifTrue-DuplicatedVariableError-new-variable-var-signal-var-is-defi-td3253818.html

Comment #2 on issue 3647 by [hidden email]: Class var #Instance not  
allowed
http://code.google.com/p/pharo/issues/detail?id=3647

Proceeding on this exception actually continue and successfully load Aida.

You can reproduce the problem by loading Aida on latest 1.2 build:

   1. DEVImageWorkspaces openExternalProjectWorkspace
   2. evaluate the Aida loading script there:

  Gofer new
           squeaksource: 'MetacelloRepository';
           package: 'ConfigurationOfAida';
           load.

        (Smalltalk at: #ConfigurationOfAida) load.