Symbolic dereferentiation of magical variables

[Ingo Blechschmidt]

Hi, 
 
S02 says: 
    our $a; say $::("a");     # works 
 
    my $a; say $::("a");      # dies, you should use: 
    my $a; say $::("MY::a");  # works 
 
How can I use symbolic dereferentiation to get $?SELF, $?CLASS, 
::?CLASS, %MY::, etc.? 
 
    say $::('$?SELF');        # does this work? 
    say $::('MY::$?SELF');    # or this? 
 
 
Also, is $::! valid syntax? (Or am I required to write this as 
$::("!")?) 
 
 
--Ingo 
 
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