Remove dead field is_import from Export.

src/librustc/hir/def.rs

@@ -131,8 +131,6 @@ pub struct Export {
     /// The visibility of the export.
     /// We include non-`pub` exports for hygienic macros that get used from extern crates.
     pub vis: ty::Visibility,
-    /// True if from a `use` or and `extern crate`.
-    pub is_import: bool,
 }
 
 impl CtorKind {

src/librustc/ich/impls_hir.rs

@@ -1076,8 +1076,7 @@ impl_stable_hash_for!(struct hir::def::Export {
     ident,
     def,
     vis,
-    span,
-    is_import
+    span
 });
 
 impl<'gcx> HashStable<StableHashingContext<'gcx>>

src/librustc_metadata/decoder.rs

@@ -644,7 +644,6 @@ impl<'a, 'tcx> CrateMetadata {
                         def: def,
                         vis: ty::Visibility::Public,
                         span: DUMMY_SP,
-                        is_import: false,
                     });
                 }
             }
@@ -684,7 +683,6 @@ impl<'a, 'tcx> CrateMetadata {
                                     ident: Ident::from_str(&self.item_name(child_index)),
                                     vis: self.get_visibility(child_index),
                                     span: self.entry(child_index).span.decode((self, sess)),
-                                    is_import: false,
                                 });
                             }
                         }
@@ -702,8 +700,7 @@ impl<'a, 'tcx> CrateMetadata {
                     (self.get_def(child_index), def_key.disambiguated_data.data.get_opt_name()) {
                     let ident = Ident::from_str(&name);
                     let vis = self.get_visibility(child_index);
-                    let is_import = false;
-                    callback(def::Export { def, ident, vis, span, is_import });
+                    callback(def::Export { def, ident, vis, span });
                     // For non-reexport structs and variants add their constructors to children.
                     // Reexport lists automatically contain constructors when necessary.
                     match def {
@@ -714,7 +711,7 @@ impl<'a, 'tcx> CrateMetadata {
                                 callback(def::Export {
                                     def: ctor_def,
                                     vis: self.get_visibility(ctor_def_id.index),
-                                    ident, span, is_import,
+                                    ident, span
                                 });
                             }
                         }
@@ -724,7 +721,7 @@ impl<'a, 'tcx> CrateMetadata {
                             let ctor_kind = self.get_ctor_kind(child_index);
                             let ctor_def = Def::VariantCtor(def_id, ctor_kind);
                             let vis = self.get_visibility(child_index);
-                            callback(def::Export { def: ctor_def, ident, vis, span, is_import });
+                            callback(def::Export { def: ctor_def, ident, vis, span });
                         }
                         _ => {}
                     }

src/librustc_resolve/build_reduced_graph.rs

@@ -681,7 +681,7 @@ impl<'a> Resolver<'a> {
             let result = self.resolve_ident_in_module(module, ident, MacroNS, false, false, span);
             if let Ok(binding) = result {
                 let (def, vis) = (binding.def(), binding.vis);
-                self.macro_exports.push(Export { ident, def, vis, span, is_import: true });
+                self.macro_exports.push(Export { ident, def, vis, span });
             } else {
                 span_err!(self.session, span, E0470, "reexported macro not found");
             }

src/librustc_resolve/macros.rs

@@ -762,7 +762,6 @@ impl<'a> Resolver<'a> {
                     def: def,
                     vis: ty::Visibility::Public,
                     span: item.span,
-                    is_import: false,
                 });
             } else {
                 self.unused_macros.insert(def_id);

src/librustc_resolve/resolve_imports.rs

@@ -919,7 +919,6 @@ impl<'a, 'b:'a> ImportResolver<'a, 'b> {
                         def: def,
                         span: binding.span,
                         vis: binding.vis,
-                        is_import: true,
                     });
                 }
             }