From @masak

<PerlJam> patch​: $^vars are for self-declared parameters, so ... yes
<moritz_> only in blocks without a signature
<moritz_> (there are probably other valid places, that's just the
first I could think of )
<masak> moritz_​: does the outermost block count as a block without a signature?
<masak> rakudo​: say $^a
<p6eval> rakudo 0a8ef0​: OUTPUT«Lexical '$a' not found [...]
<moritz_> masak​: I hope not
<masak> std​: say $^a
<p6eval> std 31896​: OUTPUT«�[...] SORRY! [...] Placeholder variable
$^a may not be used outside of a block [...]
* masak submits LTA rakudobug

From @jnthn

On Tue Aug 03 07​:48​:19 2010, masak wrote​:

<PerlJam> patch​: $^vars are for self-declared parameters, so ... yes
<moritz_> only in blocks without a signature
<moritz_> (there are probably other valid places, that's just the
first I could think of )
<masak> moritz_​: does the outermost block count as a block without a
signature?
<masak> rakudo​: say $^a
<p6eval> rakudo 0a8ef0​: OUTPUT�Lexical '$a' not found [...]
<moritz_> masak​: I hope not
<masak> std​: say $^a
<p6eval> std 31896​: OUTPUT��[...] SORRY! [...] Placeholder variable
$^a may not be used outside of a block [...]
* masak submits LTA rakudobug

Today​:

say $^a
Cannot use placeholder parameter $^a in the mainline at line 1, near "\n"

Tagging testneeded.

/jnthn

The RT System itself - Status changed from 'new' to 'open'

From @FROGGS

there already is a test​:
Raku/roast@47eec67

@FROGGS - Status changed from 'open' to 'resolved'