+ call SwapVectors before and after Exec under FPC as well. SwapVectors is
  implemented on two FPC platforms (go32v2 and msdos). On the platforms that
  don't need it, it does nothing, so it's safe to call on all platforms.



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28060 3ad0048d-3df7-0310-abae-a5850022a9f2