Rollup merge of #138300 - RalfJung:unqualified-local-imports, r=jieyouxu

add tracking issue for unqualified_local_imports

Tracking issue: #138299

r? ``````@jieyouxu``````

Author: Kobzol

compiler/rustc_feature/src/unstable.rs

@@ -240,7 +240,7 @@ declare_features! (
     /// Added for testing unstable lints; perma-unstable.
     (internal, test_unstable_lint, "1.60.0", None),
     /// Helps with formatting for `group_imports = "StdExternalCrate"`.
-    (unstable, unqualified_local_imports, "1.83.0", None),
+    (unstable, unqualified_local_imports, "1.83.0", Some(138299)),
     /// Use for stable + negative coherence and strict coherence depending on trait's
     /// rustc_strict_coherence value.
     (unstable, with_negative_coherence, "1.60.0", None),

tests/ui/feature-gates/feature-gate-unqualified-local-imports.stderr

@@ -5,6 +5,7 @@ LL | #![allow(unqualified_local_imports)]
    |          ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the `unqualified_local_imports` lint is unstable
+   = note: see issue #138299 <https://github.com/rust-lang/rust/issues/138299> for more information
    = help: add `#![feature(unqualified_local_imports)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
    = note: `#[warn(unknown_lints)]` on by default