[rakudo]: * Fix Array.push() to work with empty argument lists.  (bacek++) * While we're here, might as well fix Array.delete, Array.exists,   Array.unshift too.
[rakudo]:
* Fix Array.push() to work with empty argument lists.  (bacek++)
* While we're here, might as well fix Array.delete, Array.exists,
  Array.unshift too.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@27993 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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