Drop vis in ImplItem.

Author: cjgillot

clippy_lints/src/utils/inspector.rs

@@ -4,6 +4,7 @@ use clippy_utils::get_attr;
 use rustc_ast::ast::{Attribute, InlineAsmTemplatePiece};
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass, LintContext};
+use rustc_middle::ty;
 use rustc_session::Session;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
@@ -45,14 +46,10 @@ impl<'tcx> LateLintPass<'tcx> for DeepCodeInspector {
             return;
         }
         println!("impl item `{}`", item.ident.name);
-        match item.vis.node {
-            hir::VisibilityKind::Public => println!("public"),
-            hir::VisibilityKind::Crate(_) => println!("visible crate wide"),
-            hir::VisibilityKind::Restricted { path, .. } => println!(
-                "visible in module `{}`",
-                rustc_hir_pretty::to_string(rustc_hir_pretty::NO_ANN, |s| s.print_path(path, false))
-            ),
-            hir::VisibilityKind::Inherited => println!("visibility inherited from outer item"),
+        match cx.tcx.visibility(item.def_id) {
+            ty::Visibility::Public => println!("public"),
+            ty::Visibility::Restricted(def_id) => println!("visible in module `{}`", cx.tcx.def_path_str(def_id)),
+            ty::Visibility::Invisible => println!("invisible"),
         }
         match item.kind {
             hir::ImplItemKind::Const(_, body_id) => {