tests for inlining between IR and AST functions

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 263 matching lines @@
   /// Returns true if this element should be retained for reflection even if it
   /// would normally be tree-shaken away.
   bool isNeededForReflection(Element element) => false;
 
   /// Returns true if global optimizations such as type inferencing
   /// can apply to this element. One category of elements that do not
   /// apply is runtime helpers that the backend calls, but the
   /// optimizations don't see those calls.
   bool canBeUsedForGlobalOptimizations(Element element) => true;
 
+  bool enforceIrRepresentation(Element element) => false;
+  bool enforceAstRepresentation(Element element) => false;
+
   /// Called when [enqueuer]'s queue is empty, but before it is closed.
   /// This is used, for example, by the JS backend to enqueue additional
   /// elements needed for reflection.
   void onQueueEmpty(Enqueuer enqueuer) {}
 
   /// Called after [element] has been resolved.
   void onElementResolved(Element element, TreeElements elements) {}
 }
 
 /**
@@ skipping 1381 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');
   }
 }