Extend url in titles test

Author: GuillaumeGomez

src/test/rustdoc/remove-url-from-headings.rs

@@ -3,10 +3,15 @@
 // @has foo/fn.foo.html
 // !@has - '//a[@href="http://a.a"]'
 // @has - '//a[@href="#implementing-stuff-somewhere"]' 'Implementing stuff somewhere'
+// @has - '//a[@href="#another-one-urg"]' 'Another one urg'
 
 /// fooo
 ///
 /// # Implementing [stuff](http://a.a) somewhere
 ///
 /// hello
+///
+/// # Another [one][two] urg
+///
+/// [two]: http://a.a
 pub fn foo() {}