[perl #74948] Pair constructor does not accept special names as key in Rakudo

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# New Ticket Created by  Paweł Pabian 
# Please include the string:  [perl #74948]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=74948 >



[17:06] <bbkr> rakudo: my %h = {my => "x"}; # should this parse? 
[17:06] <p6eval> rakudo 1eef08: OUTPUT«Malformed my at line 11, near "=> 
\"x\"}; #"␤current instr.: 'perl6;HLL;Grammar;panic' pc 501 
(ext/nqp-rx/src/stage0/HLL-s0.pir:327)␤»

but...

[17:07] <bbkr> std: my %h = {my => "x"};
[17:07] <p6eval> std 30563: OUTPUT«ok 00:01 113m␤»