diff --git a/pkgs/ffigen/lib/src/code_generator/type.dart b/pkgs/ffigen/lib/src/code_generator/type.dart
index b60aed0cb..fe27ea0e1 100644
--- a/pkgs/ffigen/lib/src/code_generator/type.dart
+++ b/pkgs/ffigen/lib/src/code_generator/type.dart
@@ -43,7 +43,7 @@ abstract class Type extends AstNode {
   bool isSubtypeOf(Type other) => other.isSupertypeOf(this);
 
   /// Returns true if [this] is a supertype of [other]. That is this :> other.
-  bool isSupertypeOf(Type other) => this == other;
+  bool isSupertypeOf(Type other) => this.typealiasType == other.typealiasType;
 
   /// Returns the C type of the Type. This is the FFI compatible type that is
   /// passed to native code.
@@ -190,7 +190,7 @@ abstract class BindingType extends NoLookUpBinding implements Type {
   bool isSubtypeOf(Type other) => other.isSupertypeOf(this);
 
   @override
-  bool isSupertypeOf(Type other) => this == other;
+  bool isSupertypeOf(Type other) => this.typealiasType == other.typealiasType;
 
   @override
   String getFfiDartType(Writer w) => getCType(w);
diff --git a/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcinterfacedecl_parser.dart b/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcinterfacedecl_parser.dart
index db4e70f0f..8e9720ce0 100644
--- a/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcinterfacedecl_parser.dart
+++ b/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcinterfacedecl_parser.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+import 'dart:io';
+
 import 'package:logging/logging.dart';
 
 import '../../code_generator.dart';
@@ -180,6 +182,11 @@ void _parseSuperType(clang_types.CXCursor cursor, ObjCInterface itf) {
     setter.params
         .add(Parameter(name: 'value', type: fieldType, objCConsumed: false));
   }
+
+  if (fieldName == 'identifier') {
+    stderr.writeln("ZZZZZZZZZZZ: PROP ${decl.originalName}\t\t$getter\t\t$setter");
+  }
+
   return (getter, setter);
 }
 
@@ -216,6 +223,11 @@ ObjCMethod? parseObjCMethod(clang_types.CXCursor cursor, Declaration itfDecl,
   );
   _logger.fine('       > ${isClassMethod ? 'Class' : 'Instance'} method: '
       '${method.originalName} ${cursor.completeStringRepr()}');
+
+  if (methodName == 'identifier') {
+    stderr.writeln("ZZZZZZZZZZZ: MTHD ${itfDecl.originalName}\t\t$method");
+  }
+
   var hasError = false;
   cursor.visitChildren((child) {
     switch (child.kind) {
diff --git a/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcprotocoldecl_parser.dart b/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcprotocoldecl_parser.dart
index d9ab7df2f..dde0a22c8 100644
--- a/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcprotocoldecl_parser.dart
+++ b/pkgs/ffigen/lib/src/header_parser/sub_parsers/objcprotocoldecl_parser.dart
@@ -61,6 +61,12 @@ ObjCProtocol? parseObjCProtocolDeclaration(clang_types.CXCursor cursor) {
           protocol.superProtocols.add(superProtocol);
         }
         break;
+      case clang_types.CXCursorKind.CXCursor_ObjCPropertyDecl:
+        final (getter, setter) =
+            parseObjCProperty(child, decl, config.objcProtocols);
+        protocol.addMethod(getter);
+        protocol.addMethod(setter);
+        break;
       case clang_types.CXCursorKind.CXCursor_ObjCInstanceMethodDecl:
       case clang_types.CXCursorKind.CXCursor_ObjCClassMethodDecl:
         protocol.addMethod(parseObjCMethod(child, decl, config.objcProtocols));
diff --git a/pkgs/ffigen/lib/src/visitor/copy_methods_from_super_type.dart b/pkgs/ffigen/lib/src/visitor/copy_methods_from_super_type.dart
index 65431f6f5..91a2ce11e 100644
--- a/pkgs/ffigen/lib/src/visitor/copy_methods_from_super_type.dart
+++ b/pkgs/ffigen/lib/src/visitor/copy_methods_from_super_type.dart
@@ -87,13 +87,7 @@ class CopyMethodsFromSuperTypesVisitation extends Visitation {
     for (final proto in protocols) {
       for (final m in proto.methods) {
         if (isNSObject) {
-          if (m.originalName == 'description' || m.originalName == 'hash') {
-            // TODO(https://github.com/dart-lang/native/issues/1220): Remove
-            // this special case. These methods only clash because they're
-            // sometimes declared as getters and sometimes as normal methods.
-          } else {
-            addMethod(m);
-          }
+          addMethod(m);
         } else if (!_excludedNSObjectMethods.contains(m.originalName)) {
           addMethod(m);
         }
diff --git a/pkgs/ffigen/test/large_integration_tests/large_objc_test.dart b/pkgs/ffigen/test/large_integration_tests/large_objc_test.dart
index 06ba75645..5d003f351 100644
--- a/pkgs/ffigen/test/large_integration_tests/large_objc_test.dart
+++ b/pkgs/ffigen/test/large_integration_tests/large_objc_test.dart
@@ -39,28 +39,6 @@ void main() {
       shouldIncludeMember: randInclude,
     );
 
-    // TODO(https://github.com/dart-lang/native/issues/1220): Allow these.
-    const disallowedMethods = {
-      'accessKey',
-      'allowsCellularAccess',
-      'allowsConstrainedNetworkAccess',
-      'attributedString',
-      'cachePolicy',
-      'candidateListTouchBarItem',
-      'delegate',
-      'hyphenationFactor',
-      'image',
-      'isProxy',
-      'objCType',
-      'tag',
-      'title',
-    };
-    final interfaceFilter = DeclarationFilters(
-      shouldInclude: randInclude,
-      shouldIncludeMember: (_, method) =>
-          randInclude() && !disallowedMethods.contains(method),
-    );
-
     const outFile = 'test/large_integration_tests/large_objc_bindings.dart';
     const outObjCFile = 'test/large_integration_tests/large_objc_bindings.m';
     final config = Config(
@@ -80,7 +58,7 @@ void main() {
       unnamedEnumConstants: randomFilter,
       globals: randomFilter,
       typedefs: randomFilter,
-      objcInterfaces: interfaceFilter,
+      objcInterfaces: randomFilter,
       objcProtocols: randomFilter,
       objcCategories: randomFilter,
       externalVersions: ExternalVersions(
diff --git a/pkgs/objective_c/lib/src/objective_c_bindings_generated.dart b/pkgs/objective_c/lib/src/objective_c_bindings_generated.dart
index a8117be61..67b86779e 100644
--- a/pkgs/objective_c/lib/src/objective_c_bindings_generated.dart
+++ b/pkgs/objective_c/lib/src/objective_c_bindings_generated.dart
@@ -412,7 +412,7 @@ class NSArray extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSArray, _sel_supportsSecureCoding);
   }
 
@@ -654,7 +654,7 @@ class NSCharacterSet extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSCharacterSet, _sel_supportsSecureCoding);
   }
@@ -930,7 +930,7 @@ class NSData extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSData, _sel_supportsSecureCoding);
   }
 
@@ -1305,7 +1305,7 @@ class NSDate extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSDate, _sel_supportsSecureCoding);
   }
 
@@ -1485,7 +1485,7 @@ class NSDictionary extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSDictionary, _sel_supportsSecureCoding);
   }
 
@@ -1709,7 +1709,7 @@ class NSError extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSError, _sel_supportsSecureCoding);
   }
 
@@ -1944,7 +1944,7 @@ class NSIndexSet extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSIndexSet, _sel_supportsSecureCoding);
   }
 
@@ -2627,7 +2627,7 @@ class NSMutableArray extends NSArray {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSMutableArray, _sel_supportsSecureCoding);
   }
@@ -2860,7 +2860,7 @@ class NSMutableData extends NSData {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSMutableData, _sel_supportsSecureCoding);
   }
@@ -3152,7 +3152,7 @@ class NSMutableDictionary extends NSDictionary {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSMutableDictionary, _sel_supportsSecureCoding);
   }
@@ -3305,7 +3305,7 @@ class NSMutableIndexSet extends NSIndexSet {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSMutableIndexSet, _sel_supportsSecureCoding);
   }
@@ -3540,7 +3540,7 @@ class NSMutableOrderedSet extends NSOrderedSet {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSMutableOrderedSet, _sel_supportsSecureCoding);
   }
@@ -3793,7 +3793,7 @@ class NSMutableSet extends NSSet {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSMutableSet, _sel_supportsSecureCoding);
   }
 
@@ -4075,7 +4075,7 @@ class NSMutableString extends NSString {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(
         _class_NSMutableString, _sel_supportsSecureCoding);
   }
@@ -4493,7 +4493,7 @@ class NSNumber extends NSValue {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSNumber, _sel_supportsSecureCoding);
   }
 
@@ -4901,7 +4901,7 @@ class NSObject extends objc.ObjCObjectBase {
   }
 
   /// debugDescription
-  NSString debugDescription1() {
+  NSString get debugDescription1 {
     if (!objc.respondsToSelector(this.ref.pointer, _sel_debugDescription)) {
       throw objc.UnimplementedOptionalMethodException(
           'NSObject', 'debugDescription');
@@ -4910,6 +4910,12 @@ class NSObject extends objc.ObjCObjectBase {
     return NSString.castFromPointer(_ret, retain: true, release: true);
   }
 
+  /// description
+  NSString get description1 {
+    final _ret = _objc_msgSend_1x359cv(this.ref.pointer, _sel_description);
+    return NSString.castFromPointer(_ret, retain: true, release: true);
+  }
+
   /// doesNotRecognizeSelector:
   void doesNotRecognizeSelector_(ffi.Pointer<objc.ObjCSelector> aSelector) {
     _objc_msgSend_1d9e4oe(
@@ -4930,6 +4936,11 @@ class NSObject extends objc.ObjCObjectBase {
     return objc.ObjCObjectBase(_ret, retain: true, release: true);
   }
 
+  /// hash
+  int get hash1 {
+    return _objc_msgSend_xw2lbc(this.ref.pointer, _sel_hash);
+  }
+
   /// init
   NSObject init() {
     final _ret =
@@ -5040,7 +5051,7 @@ class NSObject extends objc.ObjCObjectBase {
   }
 
   /// superclass
-  objc.ObjCObjectBase superclass1() {
+  objc.ObjCObjectBase get superclass1 {
     final _ret = _objc_msgSend_1x359cv(this.ref.pointer, _sel_superclass);
     return objc.ObjCObjectBase(_ret, retain: true, release: true);
   }
@@ -5328,7 +5339,7 @@ class NSOrderedSet extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSOrderedSet, _sel_supportsSecureCoding);
   }
 
@@ -5862,7 +5873,7 @@ class NSSet extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSSet, _sel_supportsSecureCoding);
   }
 
@@ -6426,7 +6437,7 @@ class NSString extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSString, _sel_supportsSecureCoding);
   }
 
@@ -7735,7 +7746,7 @@ class NSURL extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSURL, _sel_supportsSecureCoding);
   }
 
@@ -8335,7 +8346,7 @@ class NSValue extends NSObject {
   }
 
   /// supportsSecureCoding
-  static bool supportsSecureCoding() {
+  static bool getSupportsSecureCoding() {
     return _objc_msgSend_91o635(_class_NSValue, _sel_supportsSecureCoding);
   }