Support checking of malbounded types.

sdk/lib/_internal/compiler/implementation/compiler.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.
 
 part of dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 156 matching lines @@
   /// Register an is check to the backend.
   void registerIsCheck(DartType type,
                        Enqueuer enqueuer,
                        TreeElements elements) {}
 
   /// Register an as check to the backend.
   void registerAsCheck(DartType type,
                        Enqueuer enqueuer,
                        TreeElements elements) {}
 
+  /// Register a runtime type variable bound tests between [typeArgument] and
+  /// [bound].
+  void registerTypeVariableBoundsSubtypeCheck(DartType typeArgument,
+                                              DartType bound) {}
+
+  /// Registers that a type variable bounds check might occur at runtime.
+  void registerTypeVariableBoundCheck(TreeElements elements) {}
+
   /// Register that the application may throw a [NoSuchMethodError].
   void registerThrowNoSuchMethod(TreeElements elements) {}
 
   /// Register that the application may throw a [RuntimeError].
   void registerThrowRuntimeError(TreeElements elements) {}
 
   /// Register that the application may throw an
   /// [AbstractClassInstantiationError].
   void registerAbstractClassInstantiation(TreeElements elements) {}
 
@@ skipping 1436 matching lines @@
 
   void close() {}
 
   toString() => name;
 
   /// Convenience method for getting an [api.CompilerOutputProvider].
   static NullSink outputProvider(String name, String extension) {
     return new NullSink('$name.$extension');
   }
 }