[perl #120383] [BUG] @a.=[@ixs] no longer works in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
# Please include the string:  [perl #120383]
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# <URL: https://rt.perl.org/Ticket/Display.html?id=120383 >


<masak> I have a regression to report.
<masak> std: my @a = 0..4; @a.=[1, 2]; say @a
<camelia> std 8adbc60: OUTPUT«ok 00:01 127m␤»
<masak> rn: my @a = 0..4; @a.=[1, 2]; say @a
<camelia> niecza v24-98-g473bd20: OUTPUT«1 2␤»
<camelia> ..rakudo-jvm 882e33: OUTPUT«===SORRY!=== Error while
compiling /tmp/UuTtIcx5t8␤Cannot use .= on a non-identifier method
call␤at /tmp/UuTtIcx5t8:1␤------> my @a = 0..4; @a.=[1, 2]⏏; say @a␤»
<camelia> ..rakudo-parrot bec62b: OUTPUT«===SORRY!=== Error while
compiling /tmp/Ayfc4RauXB␤Cannot use .= on a non-identifier method
call␤at /tmp/Ayfc4RauXB:1␤------> my @a = 0..4; @a.=[1, 2]⏏; say @a␤»
* masak submits rakudobug
<masak> I'm pretty sure @a.=[1, 2]; used to work, because I have
recent code that uses it, and just broke when I upgraded Rakudo.