We could compact source even further if we only save comments,
whitespace, and temp names and reproduce the Smalltalk code from the
compiled method using the decompiler.  This has the added benefit of not
hardcoding global/selector names in the source so the names can be changed
at just the global/selector objects and all source will automatically see the
new names when decompiled.  (Note: this assumes Selector becomes a separate
object from Symbol some day).

Cheers,
Anthony