Make TypedefMirror a direct descendant of TypeMirror.

runtime/lib/mirrors_impl.dart

Index: runtime/lib/mirrors_impl.dart
diff --git a/runtime/lib/mirrors_impl.dart b/runtime/lib/mirrors_impl.dart
index 844b6a82d93b40f465ce0aafba07ac675772326b..abbf95c223093a37cbd0357c0f70616a29fefddc 100644
--- a/runtime/lib/mirrors_impl.dart
+++ b/runtime/lib/mirrors_impl.dart
@@ -285,7 +285,7 @@ class _LocalInstanceMirrorImpl extends _LocalObjectMirrorImpl
     if (_type == null) {
       // Note it not safe to use reflectee.runtimeType because runtimeType may
       // be overridden.
-      _type = _Mirrors._reflectType(_computeType(reflectee));
+      _type = reflectType(_computeType(reflectee));
     }
     return _type;
   }
@@ -516,7 +516,7 @@ class _LocalClassMirrorImpl extends _LocalObjectMirrorImpl
         // Object has no superclass.
         return null;
       }
-      _trueSuperclassField = _Mirrors._reflectType(supertype);
+      _trueSuperclassField = reflectType(supertype);
     }
     return _trueSuperclassField;
   }
@@ -528,7 +528,7 @@ class _LocalClassMirrorImpl extends _LocalObjectMirrorImpl
   List<ClassMirror> get superinterfaces {
     if (_superinterfaces == null) {
       _superinterfaces = _interfaces(_reflectee)
-          .map((i) => _Mirrors._reflectType(i)).toList(growable:false);
+          .map((i) => reflectType(i)).toList(growable:false);
     }
     return _superinterfaces;
   }
@@ -557,7 +557,7 @@ class _LocalClassMirrorImpl extends _LocalObjectMirrorImpl
           // The reflectee is not a mixin application.
           _mixin = this;
         } else {
-          _mixin = _Mirrors._reflectType(mixinType);
+          _mixin = reflectType(mixinType);
         }
       }
     }
@@ -789,7 +789,7 @@ class _LocalFunctionTypeMirrorImpl extends _LocalClassMirrorImpl
   TypeMirror get returnType {
     if (_returnType == null) {
       _returnType =
-          _Mirrors._reflectType(_FunctionTypeMirror_return_type(_reflectee));
+          reflectType(_FunctionTypeMirror_return_type(_reflectee));
     }
     return _returnType;
   }
@@ -877,7 +877,7 @@ class _LocalTypeVariableMirrorImpl extends _LocalDeclarationMirrorImpl
   TypeMirror get upperBound {
     if (_upperBound == null) {
       _upperBound =
-          _Mirrors._reflectType(_TypeVariableMirror_upper_bound(_reflectee));
+          reflectType(_TypeVariableMirror_upper_bound(_reflectee));
     }
     return _upperBound;
   }
@@ -982,12 +982,21 @@ class _LocalLibraryMirrorImpl extends _LocalObjectMirrorImpl
     return _members;
   }
 
+  Map<Symbol, ClassMirror> _types = null;
   Map<Symbol, ClassMirror> _classes = null;
   Map<Symbol, MethodMirror> _functions = null;
   Map<Symbol, MethodMirror> _getters = null;
   Map<Symbol, MethodMirror> _setters = null;
   Map<Symbol, VariableMirror> _variables = null;
 
+  Map<Symbol, TypeMirror> get types {
+    if (_types == null) {
+      _types = _filterMap(members,

[Michael Lippautz (Google), 2013/09/06 16:58:40]

weird alignment

+                            (key, value) => (value is TypeMirror));
+    }
+    return _types;
+  }
+
   Map<Symbol, ClassMirror> get classes {
     if (_classes == null) {
       _classes = _filterMap(members,
@@ -1116,7 +1125,7 @@ class _LocalMethodMirrorImpl extends _LocalDeclarationMirrorImpl
         _returnType = owner;
       } else {
         _returnType =

[Michael Lippautz (Google), 2013/09/06 16:58:40]

fits on prev line?

-            _Mirrors._reflectType(_MethodMirror_return_type(_reflectee));
+            reflectType(_MethodMirror_return_type(_reflectee));
       }
     }
     return _returnType;
@@ -1214,7 +1223,7 @@ class _LocalVariableMirrorImpl extends _LocalDeclarationMirrorImpl
   TypeMirror _type;
   TypeMirror get type {
     if (_type == null) {
-       _type = _Mirrors._reflectType(_VariableMirror_type(_reflectee));
+       _type = reflectType(_VariableMirror_type(_reflectee));
     }
     return _type;
   }
@@ -1274,7 +1283,7 @@ class _LocalParameterMirrorImpl extends _LocalVariableMirrorImpl
   TypeMirror get type {
     if (_type == null) {
       _type =

[Michael Lippautz (Google), 2013/09/06 16:58:40]

ditto

-          _Mirrors._reflectType(_ParameterMirror_type(_reflectee, _position));
+          reflectType(_ParameterMirror_type(_reflectee, _position));
     }
     return _type;
   }
@@ -1367,7 +1376,7 @@ class _Mirrors {
       native "Mirrors_makeLocalTypeMirror";
 
   static Expando<ClassMirror> _declarationCache = new Expando("ClassMirror");
-  static Expando<ClassMirror> _instanitationCache = new Expando("TypeMirror");
+  static Expando<TypeMirror> _instanitationCache = new Expando("TypeMirror");
 
   static ClassMirror reflectClass(Type key) {
     var classMirror = _declarationCache[key];
@@ -1381,7 +1390,7 @@ class _Mirrors {
     return classMirror;
   }
 
-  static TypeMirror _reflectType(Type key) {
+  static TypeMirror reflectType(Type key) {
     var typeMirror = _instanitationCache[key];
     if (typeMirror == null) {
       typeMirror = makeLocalTypeMirror(key);