Allowing push/pop across sub calls

   The good news is that the attached patch makes this work.  The bad
news is that it also breaks PGE, albeit in a small way.  Six of the
"<after>" tests (mostly, but not exclusively, involving "<!after>") in
t/compilers/pge/p6rules/builtins.t seem to go into an infinite loop.  I
have been unable to figure this out, so I'm hoping it will be easy for
someone who understands PGE.  (Maybe there's something in PGE that
assumes that returning from a sub restores the state of the user stack?)
When (and if) that happens, we can decide whether this patch is worth
doing.  TIA,

					-- Bob Rogers
					   http://rgrjr.dyndns.org/

• Allowing push/pop across sub calls by Bob Rogers
• Re: Allowing push/pop across sub calls by Patrick R. Michaud
• Re: Allowing push/pop across sub calls by Leopold Toetsch
• Re: Allowing push/pop across sub calls by Patrick R. Michaud
• Re: Allowing push/pop across sub calls by Leopold Toetsch
• User stack: Worthwhile? by Chip Salzenberg
• Re: User stack: Worthwhile? by Patrick R. Michaud
• User stack: Worthwhile? by Bob Rogers
• Re: User stack: Worthwhile? by Will Coleda
• Re: User stack: Worthwhile? by Leopold Toetsch
• Re: User stack: Worthwhile? by Will Coleda
• Re: Allowing push/pop across sub calls by Bob Rogers
• Re: Allowing push/pop across sub calls by Patrick R. Michaud
• Re: Allowing push/pop across sub calls by Patrick R. Michaud
• Re: Allowing push/pop across sub calls by Patrick R. Michaud