[Newcompiler] Closure with push and store bytecode

[Mathieu Suen]

Hi

As proposed by Bryce I have implement the storeClosureEnvironment
I have run the benchmark:

Closure with store and push bytecode:
Performance Rating		7550

Closure with push bytecode:
Performance Rating		1663

Closure without bytecode:
Performance Rating		1408

I think that the Closure performance with bytecode store and push is  
close to the NewCompiler without closure.
I will make some benchmark to see if it's true.


Here the change set for VMMaker
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and for the NewCompiler
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The NewCompiler st must be use with RoelTyper  or don't file-in the  
change for SqueakInstvarInterfaceExtractor.

	Mth