Debugger update

Debugger update

Subject: Re: Perl 5.003_11 is available

This fixes the problems in debugger:
	a) frame=4 may loop infinitely if some arguments are tied or have
		"" overloaded
	b) `f file': better documentation.
	c) prints correctly arguments with embedded \0 (would put
		quotes at a wrong place otherwise).
	d) frame=4 would not clobber $_.
	e) backtrace save wrt -w and undefs as arguments.
	e) frame & 8: new feature: print tied and ""-overloaded
		argumentes in the stringified form.

Enjoy,

p5p-msgid: <199612111038.FAA24363@monk.mps.ohio-state.edu>