VM: Support bootstrapping core libraries from Kernel binaries instead of source.

runtime/vm/class_finalizer.h

 // 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.
 
 #ifndef RUNTIME_VM_CLASS_FINALIZER_H_
 #define RUNTIME_VM_CLASS_FINALIZER_H_
 
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
 #include "vm/object.h"
@@ skipping 52 matching lines @@
                                      const char* format,
                                      ...) PRINTF_ATTRIBUTE(4, 5);
 
   // Return false if we still have classes pending to be finalized.
   static bool AllClassesFinalized();
 
   // Return whether processing pending classes (ObjectStore::pending_classes_)
   // failed. The function returns true if the processing was successful.
   // If processing fails, an error message is set in the sticky error field
   // in the object store.
-  static bool ProcessPendingClasses();
+  static bool ProcessPendingClasses(bool from_kernel = false);
 
   // Finalize the types appearing in the declaration of class 'cls', i.e. its
   // type parameters and their upper bounds, its super type and interfaces.
   // Note that the fields and functions have not been parsed yet (unless cls
   // is an anonymous top level class).
   static void FinalizeTypesInClass(const Class& cls);
 
   // Finalize the class including its fields and functions.
   static void FinalizeClass(const Class& cls);
 
-#if defined(DART_NO_SNAPSHOT)
   // Verify that the classes have been properly prefinalized. This is
   // needed during bootstrapping where the classes have been preloaded.
   static void VerifyBootstrapClasses();
-#endif  // defined(DART_NO_SNAPSHOT).
 
   // Resolve the class of the type, but not the type's type arguments.
   // May promote the type to function type by setting its signature field.
   static void ResolveTypeClass(const Class& cls, const Type& type);
 
   // Resolve the type and target of the redirecting factory.
   static void ResolveRedirectingFactory(const Class& cls,
                                         const Function& factory);
 
   // Apply the mixin type to the mixin application class.
@@ skipping 76 matching lines @@
                            ...) PRINTF_ATTRIBUTE(4, 5);
 
   // Verify implicit offsets recorded in the VM for direct access to fields of
   // Dart instances (e.g: _TypedListView, _ByteDataView).
   static void VerifyImplicitFieldOffsets();
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_CLASS_FINALIZER_H_