patch 8.0.1804: using :normal in terminal window causes problems

Problem:    Using :normal in terminal window causes problems. (Dominique
            Pelle)
Solution:   Don't call terminal_loop() for :normal. (closes #2886)

Author: brammool

src/evalfunc.c

@@ -3313,7 +3313,7 @@ f_feedkeys(typval_T *argvars, typval_T *rettv UNUSED)
 
 		if (!dangerous)
 		    ++ex_normal_busy;
-		exec_normal(TRUE);
+		exec_normal(TRUE, TRUE);
 		if (!dangerous)
 		    --ex_normal_busy;
 

src/ex_docmd.c

@@ -10323,14 +10323,14 @@ exec_normal_cmd(char_u *cmd, int remap, int silent)
 {
     /* Stuff the argument into the typeahead buffer. */
     ins_typebuf(cmd, remap, 0, TRUE, silent);
-    exec_normal(FALSE);
+    exec_normal(FALSE, FALSE);
 }
 
 /*
  * Execute normal_cmd() until there is no typeahead left.
  */
     void
-exec_normal(int was_typed)
+exec_normal(int was_typed, int may_use_terminal_loop UNUSED)
 {
     oparg_T	oa;
 
@@ -10341,7 +10341,7 @@ exec_normal(int was_typed)
     {
 	update_topline_cursor();
 #ifdef FEAT_TERMINAL
-	if (term_use_loop()
+	if (may_use_terminal_loop && term_use_loop()
 		&& oa.op_type == OP_NOP && oa.regname == NUL
 		&& !VIsual_active)
 	{

src/proto/ex_docmd.pro

@@ -56,7 +56,7 @@ int save_current_state(save_state_T *sst);
 void restore_current_state(save_state_T *sst);
 void ex_normal(exarg_T *eap);
 void exec_normal_cmd(char_u *cmd, int remap, int silent);
-void exec_normal(int was_typed);
+void exec_normal(int was_typed, int may_use_terminal_loop);
 int find_cmdline_var(char_u *src, int *usedlen);
 char_u *eval_vars(char_u *src, char_u *srcstart, int *usedlen, linenr_T *lnump, char_u **errormsg, int *escaped);
 char_u *expand_sfile(char_u *arg);

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1804,
 /**/
     1803,
 /**/