Reset searchParam in URL.href setter

whatwg/url#117

components/script/dom/url.rs

@@ -144,6 +144,7 @@ impl URLMethods for URL {
         match Url::parse(&value.0) {
             Ok(url) => {
                 *self.url.borrow_mut() = url;
+                self.search_params.set(None);  // To be re-initialized in the SearchParams getter.
                 Ok(())
             },
             Err(error) => {

tests/wpt/metadata/url/url-constructor.html.ini

@@ -74,7 +74,3 @@
 
   [Parsing: <h\tt\nt\rp://h\to\ns\rt:9\t0\n0\r0/p\ta\nt\rh?q\tu\ne\rry#f\tr\na\rg> against <about:blank>]
     expected: FAIL
-
-  [URL.searchParams and URL.search setters, update propagation]
-    expected: FAIL
-