[perl #75776] [BUG] [WEIRD] Wrong error message for something that shouldn't parse in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
# Please include the string:  [perl #75776]
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<masak> rakudo: my $d; class A {method x { $d }}; for () { sub }
<p6eval> rakudo 99b6dd: OUTPUT«===SORRY!===␤Symbol '$ss_SS_S_S__S_S_s'
not predeclared [...]
<masak> locally, "Symbol '$d' not predeclared in <anonymous>"
* masak , honsetly confused, submits rakudobug
<masak> std: my $d; class A {method x { $d }}; for () { sub }
<p6eval> std 31266: OUTPUT«===SORRY!===␤Malformed block at [...]
class A {method x { $d }}; for () { sub⏏}␤expecting any of:␤ name␤
routine_def␤trait␤Parse failed␤FAILED 00:01 108m␤»

I don't know exactly why, but it seems that Rakudo, failing to realize
that the 'sub' thing in the for loop in fact constitutes a syntax
error, it instead blames the first innocent variable declaration it
finds.