Fix ice

tests/ui/redundant_locals.rs

@@ -117,6 +117,14 @@ fn macros() {
         let x = 1;
         let x = x;
     }
+
+    let x = 10;
+    macro_rules! rebind_outer_macro {
+        ($x:ident) => {
+            let x = x;
+        };
+    }
+    rebind_outer_macro!(y);
 }
 
 struct WithDrop(usize);

tests/ui/redundant_locals.stderr

@@ -157,13 +157,13 @@ LL |     let x = 1;
    |         ^
 
 error: redundant redefinition of a binding `a`
-  --> $DIR/redundant_locals.rs:144:5
+  --> $DIR/redundant_locals.rs:152:5
    |
 LL |     let a = a;
    |     ^^^^^^^^^^
    |
 help: `a` is initially defined here
-  --> $DIR/redundant_locals.rs:142:9
+  --> $DIR/redundant_locals.rs:150:9
    |
 LL |     let a = WithoutDrop(1);
    |         ^