Re: [perl #46391] [TODO] Return None PMC for nonexisting keys in gdbmhash

[Allison Randal]

Patrick R. Michaud wrote:

In most other places in Parrot at the moment, fetching a nonexisting
key from a hash-like object returns a null PMC, and fetching a nonexisting
element from an array-like object returns Undef.

So, I'd be in favor of changing the above TODO to read "return null
for nonexisting keys".

And even arrays will be changing to return a null PMC when we roll the 
pdd15oo branch back in. So, agreed on preferring the null PMC.

Allison