Fix Uri\WhatWg\Url::withHost() (php#19935)

Fixes phpGH-19913, fixes phpGH-19918, fixes phpGH-19920

Cherry-picked from lexbor/lexbor#a766eec632b69a8c3c1987aeb3910d51f110f8dc

Co-authored-by: Tim Düsterhus <[email protected]>

Author: NattyNarwhal

NEWS

@@ -83,6 +83,7 @@ PHP                                                                        NEWS
   . Fixed bug GH-19892 (Refcounting on zend_empty_array). (ilutov, timwolla)
   . Fixed handling of port numbers > 65535 with the internal
     `php_uri_parse_to_struct()` API. (timwolla)
+  . Fix Uri\WhatWg\Url::withHost(). (timwolla)
 
 - Windows:
   . Fix GH-19722 (_get_osfhandle asserts in debug mode when given a socket).

ext/lexbor/lexbor/url/url.c

@@ -4246,7 +4246,8 @@ lxb_url_host_set_h(lxb_url_t *url, lxb_url_parser_t *parser,
     lxb_url_parser_t self_parser;
     const lxb_char_t tmp[1] = "";
 
-    if (url->host.type == LXB_URL_HOST_TYPE_OPAQUE) {
+    /* If this’s URL has an opaque path, then return. */
+    if (url->path.opaque) {
         return LXB_STATUS_OK;
     }