[perl #126369] pair construction peculiarity in: my $x = 42; $x = :$x;

[via RT]

# New Ticket Created by  David Warring 
# Please include the string:  [perl #126369]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=126369 >


>From RT:

[10:17] <dwarring> r: my $x = 42; $x = :$x; say $x.perl
[10:17] <+camelia> rakudo-jvm 271e84: ( no output )
[10:17] <+camelia> ..rakudo-moar 271e84: OUTPUT«(my \Pair_140034859548832 = 
:x(Pair_140034859548832))␤»
[10:18] * dwarring weird
...
[10:21] <dwarring> r: my $x = 42; $x = (:$x); say $x.perl
[10:22] <+camelia> rakudo-jvm 271e84: OUTPUT«(my \Pair_1677829811 = 
:x(Pair_1677829811))␤»
[10:22] <+camelia> ..rakudo-moar 271e84: OUTPUT«(my \Pair_139757510868552 = 
:x(Pair_139757510868552))␤»
...
[10:22] <dwarring> r: my $x = 42; my $y = (:$x); say $y.perl
[10:22] <+camelia> rakudo-{moar,jvm} 271e84: OUTPUT«:x(42)␤»