Add TraceBuffer log to all Functions (plus small tweaks to function-view)

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"
+#include "vm/trace_buffer.h"
 #include "vm/visitor.h"
 
 namespace dart {
 
 #define NEW_OBJECT(type)                                                       \
   ((kind == Snapshot::kFull) ? reader->New##type() : type::New())
 
 #define NEW_OBJECT_WITH_LEN(type, len)                                         \
   ((kind == Snapshot::kFull) ? reader->New##type(len) : type::New(len))
 
@@ skipping 673 matching lines @@
   // Set all the non object fields.
   func.set_token_pos(reader->ReadIntptrValue());
   func.set_end_token_pos(reader->ReadIntptrValue());
   func.set_usage_counter(reader->ReadIntptrValue());
   func.set_num_fixed_parameters(reader->ReadIntptrValue());
   func.set_num_optional_parameters(reader->ReadIntptrValue());
   func.set_deoptimization_counter(reader->ReadIntptrValue());
   func.set_kind_tag(reader->Read<uint16_t>());
   func.set_optimized_instruction_count(reader->Read<uint16_t>());
   func.set_optimized_call_site_count(reader->Read<uint16_t>());
+  func.set_log(new TraceBuffer());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (func.raw()->to() - func.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     *(func.raw()->from() + i) = reader->ReadObjectRef();
   }
 
 // TODO(zra): Remove when arm64 is ready.
@@ skipping 1996 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