Fix icc warnings: try to set TCL_UNIX_FD for #if TCL_WIN_SOCKET == TCL_UNIX_FD.  res is not used, add a XXX comment
Fix icc warnings: try to set TCL_UNIX_FD for #if TCL_WIN_SOCKET == TCL_UNIX_FD.  res is not used, add a XXX comment

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator