Fix redundant_reference tests

Author: smoelius

examples/supplementary/redundant_reference/README.md

@@ -18,11 +18,11 @@ struct V<'cx, 'tcx> {
 }
 
 impl<'cx, 'tcx> Visitor<'tcx> for V<'cx, 'tcx> {
-    type Map = rustc_middle::hir::map::Map<'tcx>;
+    type MaybeTyCtxt = rustc_middle::ty::TyCtxt<'tcx>;
     type NestedFilter = rustc_middle::hir::nested_filter::All;
 
-    fn nested_visit_map(&mut self) -> Self::Map {
-        self.cx.tcx.hir()
+    fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt {
+        self.cx.tcx
     }
 }
 ```
@@ -35,11 +35,11 @@ struct V<'tcx> {
 }
 
 impl<'tcx> Visitor<'tcx> for V<'tcx> {
-    type Map = rustc_middle::hir::map::Map<'tcx>;
+    type MaybeTyCtxt = rustc_middle::ty::TyCtxt<'tcx>;
     type NestedFilter = rustc_middle::hir::nested_filter::All;
 
-    fn nested_visit_map(&mut self) -> Self::Map {
-        self.tcx.hir()
+    fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt {
+        self.tcx
     }
 }
 ```

examples/supplementary/redundant_reference/src/lib.rs

@@ -49,11 +49,11 @@ dylint_linting::impl_late_lint! {
     /// }
     ///
     /// impl<'cx, 'tcx> Visitor<'tcx> for V<'cx, 'tcx> {
-    ///     type Map = rustc_middle::hir::map::Map<'tcx>;
+    ///     type MaybeTyCtxt = rustc_middle::ty::TyCtxt<'tcx>;
     ///     type NestedFilter = rustc_middle::hir::nested_filter::All;
     ///
-    ///     fn nested_visit_map(&mut self) -> Self::Map {
-    ///         self.cx.tcx.hir()
+    ///     fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt {
+    ///         self.cx.tcx
     ///     }
     /// }
     /// ```
@@ -73,11 +73,11 @@ dylint_linting::impl_late_lint! {
     /// }
     ///
     /// impl<'tcx> Visitor<'tcx> for V<'tcx> {
-    ///     type Map = rustc_middle::hir::map::Map<'tcx>;
+    ///     type MaybeTyCtxt = rustc_middle::ty::TyCtxt<'tcx>;
     ///     type NestedFilter = rustc_middle::hir::nested_filter::All;
     ///
-    ///     fn nested_visit_map(&mut self) -> Self::Map {
-    ///         self.tcx.hir()
+    ///     fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt {
+    ///         self.tcx
     ///     }
     /// }
     /// ```

examples/supplementary/redundant_reference/ui/main.rs

@@ -39,11 +39,11 @@ mod redundant_reference {
     }
 
     impl<'cx, 'tcx> Visitor<'tcx> for V<'cx, 'tcx> {
-        type Map = rustc_middle::hir::map::Map<'tcx>;
+        type MaybeTyCtxt = rustc_middle::ty::TyCtxt<'tcx>;
         type NestedFilter = rustc_middle::hir::nested_filter::All;
 
-        fn nested_visit_map(&mut self) -> Self::Map {
-            self.cx.tcx.hir()
+        fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt {
+            self.cx.tcx
         }
     }
 }

examples/supplementary/redundant_reference/ui/main.stderr

@@ -7,7 +7,7 @@ LL |         cx: &'cx LateContext<'tcx>,
 note: read here
   --> $DIR/main.rs:46:17
    |
-LL |             self.cx.tcx.hir()
+LL |             self.cx.tcx
    |                 ^^^^^^^
    = help: consider storing a copy of `.cx.tcx` to eliminate the need for `'cx`
    = note: `#[warn(redundant_reference)]` on by default