[Melbourne-pm] Bug in "B"

[Mathew Robertson]

Hi PM's,

I have found a bug in B->walksymtable...  Someone here is more likely to get
a patch submitted than I ever will... :)

walksymtable assumes that the object being walked, is derived from a hash,
when in fact object can be blessed from anything.

I have provided an example implementation which provides support for blessed
arrays, but am unsure how to walk other blessed types...

Anyone car to take up the challenge of support other blessed types and/or
submitting a bug report.

cheers,
Mathew Robertson
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