Emit assembly instead of a blob for the instructions snapshot, and provide labels for the entry poi…

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/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 #include "vm/visitor.h"
@@ skipping 1178 matching lines @@
   // Write out all the non object fields.
   writer->Write<int64_t>(ptr()->compile_timestamp_);
   writer->Write<int32_t>(ptr()->state_bits_);
   writer->Write<int32_t>(ptr()->entry_patch_pc_offset_);
   writer->Write<int32_t>(ptr()->patch_code_pc_offset_);
   writer->Write<int32_t>(ptr()->lazy_deopt_pc_offset_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
+
+  writer->SetInstructionsCode(ptr()->instructions_, this);
 }
 
 
 RawInstructions* Instructions::ReadFrom(SnapshotReader* reader,
                                         intptr_t object_id,
                                         intptr_t tags,
                                         Snapshot::Kind kind) {
   ASSERT(reader->snapshot_code());
   ASSERT(kind == Snapshot::kFull);
 
@@ skipping 2039 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