patch 8.1.0583: using illogical name for get_dict_number()/get_dict_string()

Problem:    Using illogical name for get_dict_number()/get_dict_string().
Solution:   Rename to start with dict_.
diff --git a/src/edit.c b/src/edit.c
index 205dc65..c235976 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -4343,23 +4343,23 @@
 
     if (tv->v_type == VAR_DICT && tv->vval.v_dict != NULL)
     {
-	word = get_dict_string(tv->vval.v_dict, (char_u *)"word", FALSE);
-	cptext[CPT_ABBR] = get_dict_string(tv->vval.v_dict,
+	word = dict_get_string(tv->vval.v_dict, (char_u *)"word", FALSE);
+	cptext[CPT_ABBR] = dict_get_string(tv->vval.v_dict,
 						     (char_u *)"abbr", FALSE);
-	cptext[CPT_MENU] = get_dict_string(tv->vval.v_dict,
+	cptext[CPT_MENU] = dict_get_string(tv->vval.v_dict,
 						     (char_u *)"menu", FALSE);
-	cptext[CPT_KIND] = get_dict_string(tv->vval.v_dict,
+	cptext[CPT_KIND] = dict_get_string(tv->vval.v_dict,
 						     (char_u *)"kind", FALSE);
-	cptext[CPT_INFO] = get_dict_string(tv->vval.v_dict,
+	cptext[CPT_INFO] = dict_get_string(tv->vval.v_dict,
 						     (char_u *)"info", FALSE);
-	cptext[CPT_USER_DATA] = get_dict_string(tv->vval.v_dict,
+	cptext[CPT_USER_DATA] = dict_get_string(tv->vval.v_dict,
 						 (char_u *)"user_data", FALSE);
-	if (get_dict_string(tv->vval.v_dict, (char_u *)"icase", FALSE) != NULL)
-	    icase = get_dict_number(tv->vval.v_dict, (char_u *)"icase");
-	if (get_dict_string(tv->vval.v_dict, (char_u *)"dup", FALSE) != NULL)
-	    adup = get_dict_number(tv->vval.v_dict, (char_u *)"dup");
-	if (get_dict_string(tv->vval.v_dict, (char_u *)"empty", FALSE) != NULL)
-	    aempty = get_dict_number(tv->vval.v_dict, (char_u *)"empty");
+	if (dict_get_string(tv->vval.v_dict, (char_u *)"icase", FALSE) != NULL)
+	    icase = dict_get_number(tv->vval.v_dict, (char_u *)"icase");
+	if (dict_get_string(tv->vval.v_dict, (char_u *)"dup", FALSE) != NULL)
+	    adup = dict_get_number(tv->vval.v_dict, (char_u *)"dup");
+	if (dict_get_string(tv->vval.v_dict, (char_u *)"empty", FALSE) != NULL)
+	    aempty = dict_get_number(tv->vval.v_dict, (char_u *)"empty");
     }
     else
     {