Assert current behavior for links

For the two of these tests that have a local `char` to link to, this behavior isn't what's expected, but is what's happening presently.

src/test/rustdoc/intra-link-prim-methods-external-core.rs

@@ -6,6 +6,10 @@
 #![feature(no_core, lang_items)]
 #![no_core]
 
+// @has intra_link_prim_methods_external_core/index.html
+// @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html"]' 'char'
+// @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html#method.len_utf8"]' 'char::len_utf8'
+
 //! A [`char`] and its [`char::len_utf8`].
 
 extern crate my_core;

src/test/rustdoc/intra-link-prim-methods-local.rs

@@ -2,6 +2,10 @@
 #![feature(no_core, lang_items)]
 #![no_core]
 
+// @has intra_link_prim_methods_local/index.html
+// @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html"]' 'char'
+// @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html#method.len_utf8"]' 'char::len_utf8'
+
 //! A [`char`] and its [`char::len_utf8`].
 
 #[lang = "char"]

src/test/rustdoc/intra-link-prim-methods.rs

 #![deny(intra_doc_link_resolution_failure)]
 
+// @has intra_link_prim_methods/index.html
+// @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html"]' 'char'
+// @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html#method.len_utf8"]' 'char::len_utf8'
+
 //! A [`char`] and its [`char::len_utf8`].