Fix listing of source scripts in debugger

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/visitor.h"
 
@@ skipping 689 matching lines @@
     library.raw_ptr()->num_imports_ = reader->ReadIntptrValue();
     library.raw_ptr()->num_imported_into_ = reader->ReadIntptrValue();
     library.raw_ptr()->num_anonymous_ = reader->ReadIntptrValue();
     library.raw_ptr()->corelib_imported_ = 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 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();
     }
   }
   return library.raw();
@@ skipping 19 matching lines @@
   } else {
     // Write out all non object fields.
     writer->WriteIntptrValue(ptr()->num_imports_);
     writer->WriteIntptrValue(ptr()->num_imported_into_);
     writer->WriteIntptrValue(ptr()->num_anonymous_);
     writer->Write<bool>(ptr()->corelib_imported_);
     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 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());
   }
 }
 
 
 RawLibraryPrefix* LibraryPrefix::ReadFrom(SnapshotReader* reader,
                                           intptr_t object_id,
@@ skipping 1063 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