Dmitry Petrov 84e54124a2 More aggressive DCE should honor debugger invariants ...

- A LINENUMEBER node is "dead" if the corresponding instruction interval
 contains at least one "dead" bytecode instruction
 and no live bytecode instructions

- Observable local variable lifetimes should be taken into account
 when determining if a NOP is required for debugger.

2017-05-16 17:28:43 +03:00

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