Auto merge of #31716 - jseyfried:fix_privacy_for_def_err, r=nrc

Fixes #31714

Author: bors

src/librustc_resolve/lib.rs

@@ -1038,6 +1038,7 @@ impl<'a> NameBinding<'a> {
 
     fn def_and_lp(&self) -> (Def, LastPrivate) {
         let def = self.def().unwrap();
+        if let Def::Err = def { return (def, LastMod(AllPublic)) }
         (def, LastMod(if self.is_public() { AllPublic } else { DependsOn(def.def_id()) }))
     }
 

src/librustc_resolve/resolve_imports.rs

@@ -218,6 +218,8 @@ impl<'a, 'b:'a, 'tcx:'b> ImportResolver<'a, 'b, 'tcx> {
                 kind: NameBindingKind::Def(Def::Err),
                 span: None,
             });
+            let dummy_binding =
+                self.resolver.new_name_binding(e.import_directive.import(dummy_binding));
 
             let _ = e.source_module.try_define_child(target, ValueNS, dummy_binding);
             let _ = e.source_module.try_define_child(target, TypeNS, dummy_binding);

src/test/compile-fail/import.rs

@@ -15,5 +15,10 @@ use zed::baz;
 
 mod zed {
     pub fn bar() { println!("bar"); }
+    use foo; //~ ERROR unresolved import
+}
+
+fn main() {
+    zed::foo(); //~ ERROR unresolved name
+    bar();
 }
-fn main() { bar(); }