Remove unreachable code in mirrors.

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";
 
 // These values are allowed to be passed directly over the wire.
 bool _isSimpleValue(var value) {
@@ skipping 442 matching lines @@
   Type get reflectedType {
     if (!hasReflectedType) {
       throw new UnsupportedError(
           "Declarations of generics have no reflected type");
     }
     return _reflectedType;
   }
 
   Symbol _simpleName;
   Symbol get simpleName {
-    // dynamic, void and the function types have their names set eagerly in the
-    // constructor.
+    // All but anonymous mixin applications have their name set at construction.
     if(_simpleName == null) {
-      var simpleString = _name(_reflectee);
-      if (simpleString.contains('&')) {
-        _simpleName = this._mixinApplicationName;
-      } else {
-        _simpleName = _s(simpleString);
-      }
+      _simpleName = this._mixinApplicationName;
     }
     return _simpleName;
   }
 
   Symbol _qualifiedName = null;
   Symbol get qualifiedName {
     if (_qualifiedName == null) {
       _qualifiedName = _computeQualifiedName(owner, simpleName);
     }
     return _qualifiedName;
@@ skipping 229 matching lines @@
   }
 
   bool operator ==(other) {
     return this.runtimeType == other.runtimeType &&
            this._reflectee == other._reflectee &&
            this._reflectedType == other._reflectedType;
   }
 
   int get hashCode => simpleName.hashCode;
 
-  static _name(reflectee)
-      native "ClassMirror_name";
-
   static _library(reflectee)
       native "ClassMirror_library";
 
   static _supertype(reflectee)
       native "ClassMirror_supertype";
 
   static _interfaces(reflectee)
       native "ClassMirror_interfaces";
 
   static _computeMixin(reflectee)
@@ skipping 647 matching lines @@
     if (typeMirror == null) {
       typeMirror = makeLocalTypeMirror(key);
       _instanitationCache[key] = typeMirror;
       if (typeMirror is ClassMirror && !typeMirror._isGeneric) {
         _declarationCache[key] = typeMirror;
       }
     }
     return typeMirror;
   }
 }