Remove support for conflicting constructors.

sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.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.
 
 library mirrors_util;
 
 import 'dart:collection' show Queue, IterableBase;
 
 // TODO(rnystrom): Use "package:" URL (#4968).
 import 'mirrors.dart';
@@ skipping 22 matching lines @@
     }
   } else if (mirror is MethodMirror) {
     MethodMirror methodMirror = mirror;
     String simpleName = methodMirror.simpleName;
     if (methodMirror.isSetter) {
       // Remove trailing '='.
       return simpleName.substring(0, simpleName.length-1);
     } else if (methodMirror.isOperator) {
       return 'operator ${operatorName(methodMirror)}';
     } else if (methodMirror.isConstructor) {
-      // TODO(johnniwinther): Remove this when [simpleName] is
-      // [constructorName].
-      simpleName = methodMirror.constructorName;
       String className = displayName(methodMirror.owner);
       if (simpleName == '') {
         return className;
       } else {
         return '$className.$simpleName';
       }
     }
   }
   return mirror.simpleName;
 }
@@ skipping 205 matching lines @@
     // Try type variables.
     result = mirror.typeVariables.firstWhere(
         (TypeVariableMirror v) => v.simpleName == id, orElse: () => null);
   } else if (mirror is MethodMirror) {
     result = mirror.parameters.firstWhere(
         (ParameterMirror p) => p.simpleName == id, orElse: () => null);
   }
   return result;
 
 }