my $coderef = unquote_sub $sub;
-Forcibly replace subroutine with actual code. Note that for performance
-reasons all quoted subs declared so far will be globally unquoted/parsed in
-a single eval. This means that if you have a syntax error in one of your
-quoted subs you may find out when some other sub is unquoted.
+Forcibly replace subroutine with actual code.
If $sub is not a quoted sub, this is a no-op.