[perl #77786] [BUG] LTA error message when ':' quantifier follows nothing in regex in Rakudo

[Carl Mäsak]

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<moritz_> rakudo: / : /
<p6eval> rakudo ce565f: OUTPUT«===SORRY!===␤Method 'backtrack' not
found for invocant of class 'Integer'␤»
<moritz_> LTA error
<jnthn> std: / : /
<p6eval> std 32123: OUTPUT«ok 00:01 116m␤»
<moritz_> that's broken too
<jnthn> LTE error
<moritz_> should say "Backtrack control ':' does not seem to have a
preceding atom to control"