MDEV-JSON_CONTAINS_PATH returns incorrect results and produces wrong warning.

        The Item_func_json_contains_path was mistakenly set with the
        no '*' paths limitation.

mysql-test/r/func_json.result

@@ -176,6 +176,9 @@ NULL
 select json_contains_path('{ "a": true }', 'all', NULL );
 json_contains_path('{ "a": true }', 'all', NULL )
 NULL
+select json_contains_path('{"a":{"b":"c"}}', 'one', '$.a.*');
+json_contains_path('{"a":{"b":"c"}}', 'one', '$.a.*')
+1
 select json_extract('{"key1":"asd", "key2":[2,3]}', "$.key1");
 json_extract('{"key1":"asd", "key2":[2,3]}', "$.key1")
 "asd"

mysql-test/t/func_json.test

@@ -65,6 +65,7 @@ select json_contains_path('{"key1":1, "key2":[2,3]}', "aLl", "$.key1", "$.ma");
 select json_contains_path('{"key1":1, "key2":[2,3]}', "aLl", "$.key1", "$.key2");
 select json_contains_path('{ "a": true }', NULL, '$.a' );
 select json_contains_path('{ "a": true }', 'all', NULL );
+select json_contains_path('{"a":{"b":"c"}}', 'one', '$.a.*');
  
 select json_extract('{"key1":"asd", "key2":[2,3]}', "$.key1");
 select json_extract('{"key1":"asd", "key2":[2,3]}', "$.keyX", "$.keyY");

sql/item_jsonfunc.cc

@@ -1032,8 +1032,8 @@ longlong Item_func_json_contains_path::val_int()
     {
       String *s_p= args[n_arg]->val_str(tmp_paths+(n_arg-2));
       if (s_p &&
-          path_setup_nwc(&c_path->p,s_p->charset(),(const uchar *) s_p->ptr(),
-                         (const uchar *) s_p->ptr() + s_p->length()))
+          json_path_setup(&c_path->p,s_p->charset(),(const uchar *) s_p->ptr(),
+                          (const uchar *) s_p->ptr() + s_p->length()))
       {
         report_path_error(s_p, &c_path->p, n_arg-2);
         goto return_null;