Hoist hasReflectedType and reflectedType from ClassMirror to TypeMirror.

runtime/lib/mirrors_impl.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 // VM-specific implementation of the dart:mirrors library.
 
 import "dart:collection";
 
 final emptyList = new UnmodifiableListView([]);
 final emptyMap = new _UnmodifiableMapView({});
@@ skipping 1036 matching lines @@
 
   TypeMirror _upperBound = null;
   TypeMirror get upperBound {
     if (_upperBound == null) {
       _upperBound = reflectType(_TypeVariableMirror_upper_bound(_reflectee));
     }
     return _upperBound;
   }
 
   bool get hasReflectedType => false;
-  Type get reflectedType => throw new UnsupportedError();
+  Type get reflectedType {
+    throw new UnsupportedError('Type variables have no reflected type');
+  }
   Type get _reflectedType => _reflectee;
 
   List<TypeVariableMirror> get typeVariables => emptyList;
   List<TypeMirror> get typeArguments => emptyList;
 
   bool get isOriginalDeclaration => true;
   TypeMirror get originalDeclaration => this;
 
   String toString() => "TypeVariableMirror on '${_n(simpleName)}'";
 
@@ skipping 56 matching lines @@
 
   TypeMirror _referent = null;
   TypeMirror get referent {
     if (_referent == null) {
       _referent = _nativeReferent(_reflectedType);
       _referent._instantiator = _reflectedType;
     }
     return _referent;
   }
 
+  bool get hasReflectedType => !_isGenericDeclaration;
+  Type get reflectedType {
+    if (!hasReflectedType) {
+      throw new UnsupportedError(
+          "Declarations of generics have no reflected type");
+    }
+    return _reflectedType;
+  }
+
   bool get isOriginalDeclaration => !_isGeneric || _isGenericDeclaration;
 
   TypedefMirror get originalDeclaration {
     if (isOriginalDeclaration) {
       return this;
     } else {
       return _nativeDeclaration(_reflectedType);
     }
   }
 
@@ skipping 387 matching lines @@
 
   _SpecialTypeMirror(String name) : simpleName = _s(name);
 
   bool get isPrivate => false;
   bool get isTopLevel => true;
 
   DeclarationMirror get owner => null;
 
   List<InstanceMirror> get metadata => emptyList;
 
+  bool get hasReflectedType => simpleName == #dynamic;
+  Type get reflectedType {
+    if (simpleName == #dynamic) return dynamic;
+    throw new UnsupportedError("void has no reflected type");
+  }
+
   List<TypeVariableMirror> get typeVariables => emptyList;
   List<TypeMirror> get typeArguments => emptyList;
 
   bool get isOriginalDeclaration => true;
   TypeMirror get originalDeclaration => this;
 
   SourceLocation get location {
     throw new UnimplementedError('TypeMirror.location is not implemented');
   }
 
@@ skipping 68 matching lines @@
     if (typeMirror == null) {
       typeMirror = makeLocalTypeMirror(key);
       _instanitationCache[key] = typeMirror;
       if (typeMirror is ClassMirror && !typeMirror._isGeneric) {
         _declarationCache[key] = typeMirror;
       }
     }
     return typeMirror;
   }
 }