[perl #41528] Feature request, merge init and init_pmc

[via RT]

# New Ticket Created by  Allison Randal 
# Please include the string:  [perl #41528]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=41528 >


Leo suggests merging the 'init' and 'init_pmc' vtable entries into a 
single 'init' entry that accepts a variable number of arguments.

Note: this is currently not possible for low-level C PMCs, as they can't 
handle optional arguments.

Suggested example code for functionality:

.sub main :main
     .local pmc cl, o
     cl = newclass 'MyClass'
     o = new 'MyClass'
     o = new 'MyClass', $P0
.end

.namespace ['MyClass']

.sub init :method :vtable
     .param pmc initializer :optional
     print "init was called\n"
.end

.sub init_pmc :method :vtable
     .param pmc initializer
     print "should never be called\n"
.end

Allison