[perl #114456] [BUG] Invocation '()' after sub declaration doesn't parse in Rakudo (but does in STD)

[Christian Bartolomaeus via RT]

This works now:

$ perl6-m -e 'say sub { 5 }()'
5

$ perl6-m -e 'sub ($t) { say $t }(arf)'
arf

I added tests to S02-lexical-conventions/sub-block-parsing.t with the following 
commit: https://github.com/perl6/roast/commit/09ff5366a3

[perl #114456] [BUG] Invocation '()' after sub declaration doesn't parse in Rakudo (but does in STD)

[Carl Mäsak]

# New Ticket Created by  Carl Mäsak 
# Please include the string:  [perl #114456]
# in the subject line of all future correspondence about this issue. 
# URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=114456 


diakopter rn: say sub { 5 }()
p6eval niecza v19-15-g051783d: OUTPUT«5␤»
p6eval ..rakudo 7ec7a2: OUTPUT«===SORRY!===␤Confused␤at
/tmp/CUV6nwoMFP:1␤»
masak std: say sub { 5 }()
p6eval std c3e944a: OUTPUT«ok 00:00 41m␤»
* masak submits rakudobug
 masak diakopter++