patch 8.1.1735: can't build with tiny features

Problem:    Can't build with tiny features.
Solution:   Add missing #ifdefs.

src/highlight.c

@@ -3948,7 +3948,10 @@ get_match(win_T *wp, int id)
 	cur = cur->next;
     return cur;
 }
+#endif
 
+#if defined(FEAT_EVAL) || defined(PROTO)
+# ifdef FEAT_SEARCH_EXTRA
     static int
 matchadd_dict_arg(typval_T *tv, char_u **conceal_char, win_T **win)
 {
@@ -4194,3 +4197,4 @@ f_matchdelete(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 				       (int)tv_get_number(&argvars[0]), TRUE);
 # endif
 }
+#endif

src/json.c

@@ -1126,7 +1126,6 @@ json_find_end(js_read_T *reader, int options)
     reader->js_used = used_save;
     return ret;
 }
-#endif
 
 /*
  * "js_decode()" function
@@ -1176,3 +1175,4 @@ f_json_encode(typval_T *argvars, typval_T *rettv)
     rettv->v_type = VAR_STRING;
     rettv->vval.v_string = json_encode(&argvars[0], 0);
 }
+#endif

src/version.c

@@ -777,6 +777,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1735,
 /**/
     1734,
 /**/