patch 8.0.0540: building unit tests fails

Problem:    Building unit tests fails.
Solution:   Move params outside of #ifdef.

src/main.c

@@ -89,15 +89,16 @@ static char *(main_errors[]) =
 };
 
 #ifndef PROTO		/* don't want a prototype for main() */
+
+/* Various parameters passed between main() and other functions. */
+static mparm_T	params;
+
 #ifndef NO_VIM_MAIN	/* skip this for unittests */
 
 static char_u *start_dir = NULL;	/* current working dir on startup */
 
 static int has_dash_c_arg = FALSE;
 
-/* Various parameters passed between main() and other functions. */
-static mparm_T	params;
-
     int
 # ifdef VIMDLL
 _export

src/message_test.c

@@ -96,8 +96,6 @@ test_trunc_string(void)
     int
 main(int argc, char **argv)
 {
-    mparm_T params;
-
     vim_memset(&params, 0, sizeof(params));
     params.argc = argc;
     params.argv = argv;

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    540,
 /**/
     539,
 /**/