Added test

src/test/ui/match/match-same-name-enum-variant.rs

+// Test for issue #67776: binding named the same as enum variant
+// should report a warning even when matching against a borrow
+
+// check-pass
+
+#![allow(unused_variables)]
+#![allow(non_snake_case)]
+
+enum Foo {
+    Bar,
+    Baz,
+}
+
+
+fn fn2(e: Foo) {
+    match e {
+        Bar => println!("A"),
+        //~^ WARNING named the same as one of the variants of the type `Foo`
+        Baz => println!("B"),
+        //~^ WARNING named the same as one of the variants of the type `Foo`
+    }
+}
+
+fn fn1(e: &Foo) {
+    match e {
+        Bar => println!("A"),
+        //~^ WARNING named the same as one of the variants of the type `Foo`
+        Baz => println!("B"),
+        //~^ WARNING named the same as one of the variants of the type `Foo`
+    }
+}
+
+fn main() {}

src/test/ui/match/match-same-name-enum-variant.stderr

+warning[E0170]: pattern binding `Bar` is named the same as one of the variants of the type `Foo`
+  --> $DIR/match-same-name-enum-variant.rs:14:9
+   |
+LL |         Bar => println!("A"),
+   |         ^^^ help: to match on the variant, qualify the path: `Foo::Bar`
+
+warning[E0170]: pattern binding `Baz` is named the same as one of the variants of the type `Foo`
+  --> $DIR/match-same-name-enum-variant.rs:16:9
+   |
+LL |         Baz => println!("B"),
+   |         ^^^ help: to match on the variant, qualify the path: `Foo::Baz`
+
+warning[E0170]: pattern binding `Bar` is named the same as one of the variants of the type `Foo`
+  --> $DIR/match-same-name-enum-variant.rs:23:9
+   |
+LL |         Bar => println!("A"),
+   |         ^^^ help: to match on the variant, qualify the path: `Foo::Bar`
+
+warning[E0170]: pattern binding `Baz` is named the same as one of the variants of the type `Foo`
+  --> $DIR/match-same-name-enum-variant.rs:25:9
+   |
+LL |         Baz => println!("B"),
+   |         ^^^ help: to match on the variant, qualify the path: `Foo::Baz`
+