This module provides a way for XS code that hijacks OP 'op_ppaddr'
functions to delegate to (or restore) the previous functions, whether
assigned by perl or by another module. Typically this should be used in
conjunction with B::Hooks::OP::Check.

'B::Hooks::OP::Annotation' makes its types and functions available to XS
code by means of ExtUtils::Depends. Modules that wish to use these exports
in their XS code should 'use B::OP::Hooks::Annotation' in the Perl module
that loads the XS, and include something like the following in their
Makefile.PL:

use ExtUtils::MakeMaker;
use ExtUtils::Depends;