Fix for Mantis #25959.

* pdecsub.pas, parse_proc_direc:
    when a hint directive is parsed we need to check whether the new token can still be a directive

+ added test (though that won't help much as we don't check the compiler output yet... :/ )

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27463 3ad0048d-3df7-0310-abae-a5850022a9f2