memoryCodeWriter modifications

[glelouet]

1. should be placed into the writers package ? dunno. Maybe move the other classes from compile into writer.inmemory package ?
2. dynCl() should be a protected non-static method. Mainly because it bloats the public static interface, while not created for external use : the only other access besides this class, are from sublcasses that would override this to create specific DynamicClass Loader.

[stale[bot]]

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