Fix library snapshotting breakage with native entry symbol resolver

runtime/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/stub_code.h"
 #include "vm/symbols.h"
@@ skipping 1008 matching lines @@
     library.raw_ptr()->num_anonymous_ = reader->ReadIntptrValue();
     library.raw_ptr()->corelib_imported_ = reader->Read<bool>();
     library.raw_ptr()->is_dart_scheme_ = reader->Read<bool>();
     library.raw_ptr()->debuggable_ = reader->Read<bool>();
     library.raw_ptr()->load_state_ = reader->Read<int8_t>();
     // The native resolver is not serialized.
     Dart_NativeEntryResolver resolver =
         reader->Read<Dart_NativeEntryResolver>();
     ASSERT(resolver == NULL);
     library.set_native_entry_resolver(resolver);
+    // The symbol resolver is not serialized.
+    Dart_NativeEntrySymbol symbol_resolver =
+        reader->Read<Dart_NativeEntrySymbol>();
+    ASSERT(symbol_resolver == NULL);
+    library.set_native_entry_symbol_resolver(symbol_resolver);
     // 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->ReadObjectRef();
     }
@@ skipping 28 matching lines @@
     writer->WriteIntptrValue(ptr()->index_);
     writer->WriteIntptrValue(ptr()->num_imports_);
     writer->WriteIntptrValue(ptr()->num_anonymous_);
     writer->Write<bool>(ptr()->corelib_imported_);
     writer->Write<bool>(ptr()->is_dart_scheme_);
     writer->Write<bool>(ptr()->debuggable_);
     writer->Write<int8_t>(ptr()->load_state_);
     // We do not serialize the native resolver over, this needs to be explicitly
     // set after deserialization.
     writer->Write<Dart_NativeEntryResolver>(NULL);
+    // We do not serialize the native entry symbol, this needs to be explicitly
+    // set after deserialization.
+    writer->Write<Dart_NativeEntrySymbol>(NULL);
     // We do not write the loaded_scripts_ cache to the snapshot. It gets
     // set to NULL when reading the library from the snapshot, and will
     // be rebuilt lazily.
 
     // Write out all the object pointer fields.
     SnapshotWriterVisitor visitor(writer);
     visitor.VisitPointers(from(), to());
   }
 }
 
@@ skipping 1686 matching lines @@
     // We do not allow objects with native fields in an isolate message.
     writer->SetWriteException(Exceptions::kArgument,
                               "Illegal argument in isolate message"
                               " : (object is a UserTag)");
   } else {
     UNREACHABLE();
   }
 }
 
 }  // namespace dart