Fix detection if a function was compiled,

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/native_entry.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
@@ skipping 715 matching lines @@
     func.set_kind_tag(reader->Read<uint32_t>());
     func.set_token_pos(TokenPosition::SnapshotDecode(token_pos));
     func.set_end_token_pos(TokenPosition::SnapshotDecode(end_token_pos));
     if (reader->snapshot_code()) {
       func.set_usage_counter(0);
       func.set_deoptimization_counter(0);
       func.set_optimized_instruction_count(0);
       func.set_optimized_call_site_count(0);
     } else {
       func.set_usage_counter(reader->Read<int32_t>());
-      func.set_deoptimization_counter(reader->Read<int16_t>());
+      func.set_deoptimization_counter(reader->Read<int8_t>());
       func.set_optimized_instruction_count(reader->Read<uint16_t>());
       func.set_optimized_call_site_count(reader->Read<uint16_t>());
     }
+    func.set_was_compiled(false);
 
     // Set all the object fields.
     READ_OBJECT_FIELDS(func,
                        func.raw()->from(), func.raw()->to_snapshot(),
                        kAsReference);
     // Initialize all fields that are not part of the snapshot.
     if (reader->snapshot_code()) {
       func.ClearICDataArray();
       func.ClearCode();
       // Read the code object and fixup entry point.
@@ skipping 57 matching lines @@
     writer->Write<int16_t>(ptr()->num_optional_parameters_);
     writer->Write<uint32_t>(ptr()->kind_tag_);
     if (writer->snapshot_code()) {
       // Omit fields used to support de/reoptimization.
     } else {
       if (is_optimized) {
         writer->Write<int32_t>(FLAG_optimization_counter_threshold);
       } else {
         writer->Write<int32_t>(0);
       }
-      writer->Write<int16_t>(ptr()->deoptimization_counter_);
+      writer->Write<int8_t>(ptr()->deoptimization_counter_);
       writer->Write<uint16_t>(ptr()->optimized_instruction_count_);
       writer->Write<uint16_t>(ptr()->optimized_call_site_count_);
     }
 
     // Write out all the object pointer fields.
     SnapshotWriterVisitor visitor(writer, kAsReference);
     visitor.VisitPointers(from(), to_snapshot());
     if (writer->snapshot_code()) {
       ASSERT(ptr()->ic_data_array_ == Array::null());
       ASSERT((ptr()->code_ == ptr()->unoptimized_code_) ||
@@ skipping 2865 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