[perl #116238] [BUG] Non-associativity isn't enforced in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
# Please include the string:  [perl #116238]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=116238 >


<masak> r: sub infix:<@>($a, $b) is assoc<non> { $a + $b }; say 1 @ 2 @ 3
<p6eval> rakudo 930369: OUTPUT«6␤»
<masak> like that, but it isn't enforced.
* masak submits rakudobug
<masak> std: 1 <=> 2 <=> 3
<p6eval> std a8bc48f: OUTPUT«===SORRY!===␤"<=>" and "<=>" are
non-associative and require parens [...] Check failed␤FAILED 00:00
42m␤»
<masak> r: 1 <=> 2 <=> 3
<p6eval> rakudo 930369:  ( no output )
<masak> seems non-associativity in general, even among built-in
operators, isn't enforced.