Fix `wildcard_enum_match_arm` suggests wrongly with raw identifiers (#15093)

Closes rust-lang/rust-clippy#15091

The lack of ability to escape raw identifiers is a known issue of
Clippy. In this case, it can be avoided by snippet from the code.

changelog: [`wildcard_enum_match_arm`] fix wrong suggestions with raw
identifiers

3 files changed, 35 insertions, 1 deletions

diff --git a/tests/ui/wildcard_enum_match_arm.fixed b/tests/ui/wildcard_enum_match_arm.fixed
index 141ff6eb2ac..e40e5267383 100644
--- a/tests/ui/wildcard_enum_match_arm.fixed
+++ b/tests/ui/wildcard_enum_match_arm.fixed
@@ -105,3 +105,17 @@ fn main() {
         }
     }
 }
+
+fn issue15091() {
+    enum Foo {
+        A,
+        B,
+        C,
+    }
+
+    match Foo::A {
+        Foo::A => {},
+        r#type @ Foo::B | r#type @ Foo::C => {},
+        //~^ wildcard_enum_match_arm
+    }
+}
diff --git a/tests/ui/wildcard_enum_match_arm.rs b/tests/ui/wildcard_enum_match_arm.rs
index a13684e9100..8259f059847 100644
--- a/tests/ui/wildcard_enum_match_arm.rs
+++ b/tests/ui/wildcard_enum_match_arm.rs
@@ -105,3 +105,17 @@ fn main() {
         }
     }
 }
+
+fn issue15091() {
+    enum Foo {
+        A,
+        B,
+        C,
+    }
+
+    match Foo::A {
+        Foo::A => {},
+        r#type => {},
+        //~^ wildcard_enum_match_arm
+    }
+}
diff --git a/tests/ui/wildcard_enum_match_arm.stderr b/tests/ui/wildcard_enum_match_arm.stderr
index 088c6b7b284..1f1de166d00 100644
--- a/tests/ui/wildcard_enum_match_arm.stderr
+++ b/tests/ui/wildcard_enum_match_arm.stderr
@@ -40,5 +40,11 @@ error: wildcard match will also match any future added variants
 LL |             _ => (),
    |             ^ help: try: `Enum::B | Enum::__Private`
 
-error: aborting due to 6 previous errors
+error: wildcard match will also match any future added variants
+  --> tests/ui/wildcard_enum_match_arm.rs:118:9
+   |
+LL |         r#type => {},
+   |         ^^^^^^ help: try: `r#type @ Foo::B | r#type @ Foo::C`
+
+error: aborting due to 7 previous errors