[perl #77864] [BUG] Unhelpful error messages instead of DWIM when doing &&= or ?&= or ?|= or ?^= on an undefined variable in the rhs in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
# Please include the string:  [perl #77864]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=77864 >


<thundergnat> std: my $x; $x &&= 1; say $x;
<p6eval> std : OUTPUT«ok 00:01 118m␤»
<thundergnat> rakudo: my $x; $x &&= 1; say $x;
<p6eval> rakudo 51e3ff: OUTPUT«No applicable candidates found to
dispatch to for 'infix:<&&>'. Available candidates are:␤:(Mu $a, Mu
$b)␤␤  in main program body at line 1␤»
* masak submits rakudobug
<masak> thundergnat++
<thundergnat> rakudo: my $x; $x ?&= 1; say $x;
<p6eval> rakudo 51e3ff: OUTPUT«No applicable candidates found to
dispatch to for 'infix:<?&>'. Available candidates are:␤:(Any $a, Any
$b)␤␤  in main program body at line 1␤»
<thundergnat> rakudo: my $x; $x ?|= 1; say $x;
<p6eval> rakudo 51e3ff: OUTPUT«No applicable candidates found to
dispatch to for 'infix:<?|>'. Available candidates are:␤:(Any $a, Any
$b)␤␤  in main program body at line 1␤»
<thundergnat> rakudo: my $x; $x ?^= 1; say $x;
<p6eval> rakudo 51e3ff: OUTPUT«No applicable candidates found to
dispatch to for 'infix:<?^>'. Available candidates are:␤:(Any $a, Any
$b)␤␤  in main program body at line 1␤»