* support passing [nil] to an array of class/objcclass/javaclass/intf/...
    in {$mode objfpc} (mantis #19452)

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28862 3ad0048d-3df7-0310-abae-a5850022a9f2
  + test for mantis #21449, already fixed in the mean time

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28863 3ad0048d-3df7-0310-abae-a5850022a9f2