Test that using the previous lint names still applies the lint

Author: jyn514

src/test/rustdoc-ui/renamed-lint-still-applies.rs

@@ -0,0 +1,5 @@
+// compile-args: --crate-type lib
+#![deny(broken_intra_doc_links)]
+//~^ WARNING renamed
+//! [x]
+//~^ ERROR unresolved link

src/test/rustdoc-ui/renamed-lint-still-applies.stderr

@@ -0,0 +1,23 @@
+warning: lint `broken_intra_doc_links` has been renamed to `rustdoc::broken_intra_doc_links`
+  --> $DIR/renamed-lint-still-applies.rs:2:9
+   |
+LL | #![deny(broken_intra_doc_links)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::broken_intra_doc_links`
+   |
+   = note: `#[warn(renamed_and_removed_lints)]` on by default
+
+error: unresolved link to `x`
+  --> $DIR/renamed-lint-still-applies.rs:4:6
+   |
+LL | //! [x]
+   |      ^ no item named `x` in scope
+   |
+note: the lint level is defined here
+  --> $DIR/renamed-lint-still-applies.rs:2:9
+   |
+LL | #![deny(broken_intra_doc_links)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^
+   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
+
+error: aborting due to previous error; 1 warning emitted
+