Fix for issue 1456 - register libraries read from a partial snapshot

vm/raw_object_snapshot.cc

 // 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.
 
 #include "vm/bigint_operations.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/visitor.h"
 
@@ skipping 687 matching lines @@
     // The cache of loaded scripts is not serialized.
     library.raw_ptr()->loaded_scripts_ = Array::null();
 
     // Set all the object fields.
     // TODO(5411462): Need to assert No GC can happen here, even though
     // allocations may happen.
     intptr_t num_flds = (library.raw()->to() - library.raw()->from());
     for (intptr_t i = 0; i <= num_flds; i++) {
       *(library.raw()->from() + i) = reader->ReadObject();
     }
+    if (kind != Snapshot::kFull) {
+      library.Register();
+    }
   }
   return library.raw();
 }
 
 
 void RawLibrary::WriteTo(SnapshotWriter* writer,
                          intptr_t object_id,
                          Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage);
@@ skipping 1097 matching lines @@
   // Write out all the other fields.
   writer->Write<RawObject*>(ptr()->num_bracket_expressions_);
   writer->WriteObject(ptr()->pattern_);
   writer->WriteIntptrValue(ptr()->type_);
   writer->WriteIntptrValue(ptr()->flags_);
 
   // Do not write out the data part which is native.
 }
 
 }  // namespace dart