[perl #48270] [PCT] missing class in parseactions should give error

[Patrick R. Michaud via RT]

Now fixed in r32829.

The solution I've implemented contains a workaround because the
get_class opcode doesn't properly return PMCNULL when requesting a
non-existent class via an array -- instead it throw the "get_string()
not found in ..." exception.  We should fix this, but I'll file a
separate ticket for it.

Closing ticket,

Pm