t/configure/step.t:  Improved test coverage of Parrot::Configure::Step: subroutines integrate(), file_checksum() and copy_if_diff().  Also, eliminate unnecessary stringification of variables provided as arguments to subroutine calls, e.g., dirname("$fname") becomes dirname($fname).
t/configure/step.t:  Improved test coverage of Parrot::Configure::Step:
subroutines integrate(), file_checksum() and copy_if_diff().  Also, eliminate
unnecessary stringification of variables provided as arguments to subroutine
calls, e.g., dirname("$fname") becomes dirname($fname).


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@18534 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot