patch 8.0.0367: types in include files may be inconsistent

Problem:    If configure defines _LARGE_FILES some include files are included
            before it is defined.
Solution:   Include vim.h first. (Sam Thursfield, closes #1508)

src/gui_motif.c

@@ -8,6 +8,8 @@
  * See README.txt for an overview of the Vim source code.
  */
 
+#include "vim.h"
+
 #include <Xm/Form.h>
 #include <Xm/RowColumn.h>
 #include <Xm/PushB.h>
@@ -33,8 +35,6 @@
 #include <X11/StringDefs.h>
 #include <X11/Intrinsic.h>
 
-#include "vim.h"
-
 #ifdef HAVE_X11_XPM_H
 # include <X11/xpm.h>
 #else