patch 8.0.0516: a large count on a normal command causes trouble

Problem:    A large count on a normal command causes trouble. (Dominique
            Pelle)
Solution:   Make "opcount" long.

src/globals.h

@@ -932,10 +932,10 @@ EXTERN int	State INIT(= NORMAL);	/* This is the current state of the
 					 * command interpreter. */
 
 EXTERN int	finish_op INIT(= FALSE);/* TRUE while an operator is pending */
-EXTERN int	opcount INIT(= 0);	/* count for pending operator */
+EXTERN long	opcount INIT(= 0);	/* count for pending operator */
 
 /*
- * ex mode (Q) state
+ * Ex mode (Q) state
  */
 EXTERN int exmode_active INIT(= 0);	/* zero, EXMODE_NORMAL or EXMODE_VIM */
 EXTERN int ex_no_reprint INIT(= FALSE); /* no need to print after z or p */

src/testdir/test_normal.vim

@@ -2259,7 +2259,7 @@ func! Test_normal53_digraph()
   bw!
 endfunc
 
-func! Test_normal54_Ctrl_bsl()
+func Test_normal54_Ctrl_bsl()
   new
   call setline(1, 'abcdefghijklmn')
   exe "norm! df\<c-\>\<c-n>"
@@ -2282,3 +2282,11 @@ func! Test_normal54_Ctrl_bsl()
   " clean up
   bw!
 endfunc
+
+func Test_normal_large_count()
+  " This may fail with 32bit long, how do we detect that?
+  new
+  normal o
+  normal 6666666666dL
+  bwipe!
+endfunc

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    516,
 /**/
     515,
 /**/