Roberto Ierusalimschy a006514ea1 Big revamp in the implmentation of labels/gotos ...

Added restriction that, when a label is created, there cannot be
another label with the same name visible. That allows backward goto's
to be resolved when they are read. Backward goto's get a close if
they jump out of the scope of some variable; labels get a close only
if previous goto to it jumps out of the scope of some upvalue.

2018-10-29 14:26:48 -03:00

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