[perl #131857] Aliased named parameters broke in a recent MoarVM commit

[via RT]

# New Ticket Created by  Daniel Green 
# Please include the string:  [perl #131857]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=131857 >


[22:44] <MasterDuke> m: sub foo(:color(:$colour)) { $colour + 1 }; my $s;
for ^1000000 { $s += foo(:color($_)) }; say $s; say now - INIT now
[22:44] <+camelia> rakudo-moar a91ad2: OUTPUT: «Unexpected named argument
'color' passed␤  in sub foo at <tmp> line 1␤  in block <unit> at <tmp> line
1␤␤»
[22:44] <MasterDuke> bisectable6: sub foo(:color(:$colour)) { $colour + 1
}; my $s; for ^1000000 { $s += foo(:color($_)) }; say $s;
[22:44] <+bisectable6> MasterDuke, Bisecting by exit code (old=2015.12
new=a91ad2d). Old exit code: 0
[22:44] <+bisectable6> MasterDuke, bisect log:
https://gist.github.com/651d00f77245537de7326c9316f4513e
[22:44] <+bisectable6> MasterDuke, (2017-08-04)
https://github.com/rakudo/rakudo/commit/8bed4a67b44acb6c0e9f057d11a2ab2f0ea5d8cd
[22:45] <Zoffix> haw
[22:45] <MasterDuke> c: 2017.07 sub foo(:color(:$colour)) { $colour + 1 };
my $s; for ^1000000 { $s += foo(:color($_)) }; say $s; say now - INIT now
[22:45] <+committable6> MasterDuke, ¦2017.07: «500000500000␤1.4953885»