test: add upstream test cases to urlsearchparam

Refs: web-platform-tests/wpt#26126

PR-URL: #35792
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/fixtures/wpt/README.md

@@ -12,7 +12,7 @@ Last update:
 
 - console: https://github.com/web-platform-tests/wpt/tree/3b1f72e99a/console
 - encoding: https://github.com/web-platform-tests/wpt/tree/d7f9e16c9a/encoding
-- url: https://github.com/web-platform-tests/wpt/tree/33e4ac0902/url
+- url: https://github.com/web-platform-tests/wpt/tree/54c6d64be0/url
 - resources: https://github.com/web-platform-tests/wpt/tree/1d14e821b9/resources
 - interfaces: https://github.com/web-platform-tests/wpt/tree/15e47f779c/interfaces
 - html/webappapis/microtask-queuing: https://github.com/web-platform-tests/wpt/tree/2c5c3c4c27/html/webappapis/microtask-queuing

test/fixtures/wpt/url/urlsearchparams-constructor.any.js

@@ -200,6 +200,8 @@ test(function() {
   { "input": {"+": "%C2"}, "output": [["+", "%C2"]], "name": "object with +" },
   { "input": {c: "x", a: "?"}, "output": [["c", "x"], ["a", "?"]], "name": "object with two keys" },
   { "input": [["c", "x"], ["a", "?"]], "output": [["c", "x"], ["a", "?"]], "name": "array with two keys" },
+  { "input": {"\uD835x": "1", "xx": "2", "\uD83Dx": "3"}, "output": [["\uFFFDx", "3"], ["xx", "2"]], "name": "2 unpaired surrogates (no trailing)" },
+  { "input": {"x\uDC53": "1", "x\uDC5C": "2", "x\uDC65": "3"}, "output": [["x\uFFFD", "3"]], "name": "3 unpaired surrogates (no leading)" },
   { "input": {"a\0b": "42", "c\uD83D": "23", "d\u1234": "foo"}, "output": [["a\0b", "42"], ["c\uFFFD", "23"], ["d\u1234", "foo"]], "name": "object with NULL, non-ASCII, and surrogate keys" }
 ].forEach((val) => {
     test(() => {

test/fixtures/wpt/versions.json

@@ -8,7 +8,7 @@
     "path": "encoding"
   },
   "url": {
-    "commit": "33e4ac09029c463ea6ee57d6f33477a9043e98e8",
+    "commit": "54c6d64be071c60baaad8c4da0365b962ffbe77c",
     "path": "url"
   },
   "resources": {