* optimization in tcg386.g_intf_wrapper: use the much more efficient case 1
  for virtual methods, that use the register calling convention, but have at
  least one free register (i.e. not used as a parameter and not required to be
  preserved by the function)



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25830 3ad0048d-3df7-0310-abae-a5850022a9f2