Precompilation: Including generative constructor entry points should mark a class as instantiated.

runtime/vm/precompiler.h

 // Copyright (c) 2015, 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.
 
 #ifndef VM_PRECOMPILER_H_
 #define VM_PRECOMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/hash_map.h"
 #include "vm/object.h"
@@ skipping 89 matching lines @@
   void ClearAllCode();
   void AddRoots(Dart_QualifiedFunctionName embedder_entry_points[]);
   void AddEntryPoints(Dart_QualifiedFunctionName entry_points[]);
   void Iterate();
 
   void AddCalleesOf(const Function& function);
   void AddConstObject(const Instance& instance);
   void AddClosureCall(const ICData& call_site);
   void AddField(const Field& field);
   void AddFunction(const Function& function);
-  void AddClass(const Class& cls);
+  void AddInstantiatedClass(const Class& cls);
   void AddSelector(const String& selector);
   bool IsSent(const String& selector);
 
   void ProcessFunction(const Function& function);
   void CheckForNewDynamicFunctions();
 
   void DropUncompiledFunctions();
   void BindStaticCalls();
   void DedupStackmaps();
 
@@ skipping 26 matching lines @@
   const GrowableObjectArray& libraries_;
   const GrowableObjectArray& pending_functions_;
   SymbolSet sent_selectors_;
   FunctionSet enqueued_functions_;
   Error& error_;
 };
 
 }  // namespace dart
 
 #endif  // VM_PRECOMPILER_H_