3.9a6693
-------------

    http://ftp.squeak.org/3.9alpha/Squeak3.9a-6693.zip

Not many changes in this one, this was is just a snapshot before we  
look into the morphic splitters
changes.


Tests:
-----------------------
-> fix #testAsMutator in Collection
-> fixed some tests in Kernel
-> fix undeclared vars in ClassRenameFixTest

Kernel
---------
-> removed TempNameCache from CompiledMethod

Monticello
--------------
fix two Undeclared:
- MCGOODSRepository referenced KKDatabase directly
- MCVersionTest: add instVar "visited", fix a method to use
   it.

SmaCC
----------
- add isRBToken

ST-80
-------
- remove the warning in #methodSourceContainingIt
    (This is quite fast now... under a minute)