Message2322

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ah, well it seems that sun cannot make up its mind

http://developer.java.sun.com/developer/bugParade/bugs/4739388.html

they have added a flag to get jsrs back.

pro to no jsrs:
- it simplifies the compiler code
- verification of jsr is one of the most delicate part of
bytecode
verif.
- speed, although reentering a generator in a finally clause
and yield in finally clauses are rather untypical

contra:
- code could blow up, deeply nested try-finally are not that
typical in Python but we emit more bytecode per line of code,
and if PEP 310 is accepted nesting try-finally will be even
easier, more common?

Having some measure about what kind of code lengths we could
get both ways would be good.