Rollup merge of #146413 - GuillaumeGomez:rustdoc-bare-urls, r=lolbinarycat

Improve suggestion in case a bare URL is surrounded by brackets

Fixes https://github.com/rust-lang/rust/issues/146162.

With this change, output looks like this:

```
  |
1 | //! [https://github.com]
  |     ^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com>`
  |
  = note: bare URLs are not automatically turned into clickable links
  = note: `#[warn(rustdoc::bare_urls)]` on by default
```

cc ```@fmease```
r? ```@lolbinarycat```

3 files changed, 97 insertions, 1 deletions

diff --git a/tests/rustdoc-ui/lints/bare-urls.fixed b/tests/rustdoc-ui/lints/bare-urls.fixed
index a91573146b8..ac63e291c5b 100644
--- a/tests/rustdoc-ui/lints/bare-urls.fixed
+++ b/tests/rustdoc-ui/lints/bare-urls.fixed
@@ -68,3 +68,17 @@ pub mod foo {
     /// https://somewhere.com/a?hello=12&bye=11#xyz
     pub fn bar() {}
 }
+
+/// <https://bloob.blob>
+//~^ ERROR this URL is not a hyperlink
+/// [ <https://bloob.blob> ]
+//~^ ERROR this URL is not a hyperlink
+/// [ <https://bloob.blob>]
+//~^ ERROR this URL is not a hyperlink
+/// [<https://bloob.blob> ]
+//~^ ERROR this URL is not a hyperlink
+/// [<https://bloob.blob>
+//~^ ERROR this URL is not a hyperlink
+/// <https://bloob.blob>]
+//~^ ERROR this URL is not a hyperlink
+pub fn lint_with_brackets() {}
diff --git a/tests/rustdoc-ui/lints/bare-urls.rs b/tests/rustdoc-ui/lints/bare-urls.rs
index 5b008cdafa2..a70a3ec822e 100644
--- a/tests/rustdoc-ui/lints/bare-urls.rs
+++ b/tests/rustdoc-ui/lints/bare-urls.rs
@@ -68,3 +68,17 @@ pub mod foo {
     /// https://somewhere.com/a?hello=12&bye=11#xyz
     pub fn bar() {}
 }
+
+/// [https://bloob.blob]
+//~^ ERROR this URL is not a hyperlink
+/// [ https://bloob.blob ]
+//~^ ERROR this URL is not a hyperlink
+/// [ https://bloob.blob]
+//~^ ERROR this URL is not a hyperlink
+/// [https://bloob.blob ]
+//~^ ERROR this URL is not a hyperlink
+/// [https://bloob.blob
+//~^ ERROR this URL is not a hyperlink
+/// https://bloob.blob]
+//~^ ERROR this URL is not a hyperlink
+pub fn lint_with_brackets() {}
diff --git a/tests/rustdoc-ui/lints/bare-urls.stderr b/tests/rustdoc-ui/lints/bare-urls.stderr
index e1108c7e7f8..fc3c642f5aa 100644
--- a/tests/rustdoc-ui/lints/bare-urls.stderr
+++ b/tests/rustdoc-ui/lints/bare-urls.stderr
@@ -243,5 +243,73 @@ help: use an automatic link instead
 LL | #[doc = "<https://example.com/raw>"]
    |          +                       +
 
-error: aborting due to 20 previous errors
+error: this URL is not a hyperlink
+  --> $DIR/bare-urls.rs:72:5
+   |
+LL | /// [https://bloob.blob]
+   |     ^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://bloob.blob>`
+   |
+   = note: bare URLs are not automatically turned into clickable links
+
+error: this URL is not a hyperlink
+  --> $DIR/bare-urls.rs:74:7
+   |
+LL | /// [ https://bloob.blob ]
+   |       ^^^^^^^^^^^^^^^^^^
+   |
+   = note: bare URLs are not automatically turned into clickable links
+help: use an automatic link instead
+   |
+LL | /// [ <https://bloob.blob> ]
+   |       +                  +
+
+error: this URL is not a hyperlink
+  --> $DIR/bare-urls.rs:76:7
+   |
+LL | /// [ https://bloob.blob]
+   |       ^^^^^^^^^^^^^^^^^^
+   |
+   = note: bare URLs are not automatically turned into clickable links
+help: use an automatic link instead
+   |
+LL | /// [ <https://bloob.blob>]
+   |       +                  +
+
+error: this URL is not a hyperlink
+  --> $DIR/bare-urls.rs:78:6
+   |
+LL | /// [https://bloob.blob ]
+   |      ^^^^^^^^^^^^^^^^^^
+   |
+   = note: bare URLs are not automatically turned into clickable links
+help: use an automatic link instead
+   |
+LL | /// [<https://bloob.blob> ]
+   |      +                  +
+
+error: this URL is not a hyperlink
+  --> $DIR/bare-urls.rs:80:6
+   |
+LL | /// [https://bloob.blob
+   |      ^^^^^^^^^^^^^^^^^^
+   |
+   = note: bare URLs are not automatically turned into clickable links
+help: use an automatic link instead
+   |
+LL | /// [<https://bloob.blob>
+   |      +                  +
+
+error: this URL is not a hyperlink
+  --> $DIR/bare-urls.rs:82:5
+   |
+LL | /// https://bloob.blob]
+   |     ^^^^^^^^^^^^^^^^^^
+   |
+   = note: bare URLs are not automatically turned into clickable links
+help: use an automatic link instead
+   |
+LL | /// <https://bloob.blob>]
+   |     +                  +
+
+error: aborting due to 26 previous errors