Add test to ensure that external items aren't lint-checked

Author: GuillaumeGomez

src/librustdoc/clean/types.rs

@@ -1655,10 +1655,10 @@ pub struct Impl {
 #[derive(Clone, Debug)]
 pub enum Import {
     // use source as str;
-    // The bool indicates wether it imports a macro or not.
+    // The bool indicates whether it imports a macro or not.
     Simple(String, ImportSource, bool),
     // use source::*;
-    // The bool indicates wether this is from an import.
+    // The bool indicates whether this is from an import.
     Glob(ImportSource, bool),
 }
 

src/test/rustdoc-ui/auxiliary/intra-doc-broken.rs

@@ -0,0 +1,4 @@
+#![crate_name = "intra_doc_broken"]
+
+/// [not_found]
+pub fn foo() {}

src/test/rustdoc-ui/intra-doc-broken-reexport.rs

@@ -0,0 +1,8 @@
+// aux-build:intra-doc-broken.rs
+// check-pass
+
+#![deny(broken_intra_doc_links)]
+
+extern crate intra_doc_broken;
+
+pub use intra_doc_broken::foo;

src/test/rustdoc-ui/pub-export-lint.stderr

@@ -1,8 +1,8 @@
 error: unresolved link to `somewhere`
   --> $DIR/pub-export-lint.rs:3:6
    |
-LL | /// [somewhere]
-   |      ^^^^^^^^^ the module `pub_export_lint` contains no item named `somewhere`
+LL | /// [aloha]
+   |      ^^^^^ no item named `aloha` in scope
    |
 note: the lint level is defined here
   --> $DIR/pub-export-lint.rs:1:9