if I understand correctly, what you are saying is that:

my @coderefs;
for $i (@array) {
  push @coderefs, sub { print $i; };
}
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is (roughly) equivilant, scope-wise, to:

my @coderefs;
for (@array) {
  my $i = \$_;
  push @coderefs, sub { print $$i; };
}
[download]

In the second case, it is abundantly clear that the $i captured by the closure is different for each iteration, and is an alias for the underlying array element.