Fix/simulation

[QDucasse]

Small fixes for the StackInterpreter simulation to execute:

InterpreterStackPages initialize.
options := {
    #ObjectMemory -> #Spur64BitCoMemoryManager.
    #BytesPerWord -> 8
} asDictionary.

c := StackInterpreterSimulator newWithOptions: options.
c openOn: Smalltalk imagePath extraMemory: 100000.
c run.

now fails on file issues.

Commits include:

• long32 now use unsigned
• SmartSyntaxPluginTMethod >> setSelector: sel definingClass: class args: argList reordering of local allocations