Remove parent_level field of function type parameters.

runtime/vm/clustered_snapshot.cc

 // Copyright (c) 2016, 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/clustered_snapshot.h"
 
 #include "platform/assert.h"
 #include "vm/bootstrap.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
@@ skipping 3171 matching lines @@
     for (intptr_t i = 0; i < count; i++) {
       RawTypeParameter* type = objects_[i];
       RawObject** from = type->from();
       RawObject** to = type->to();
       for (RawObject** p = from; p <= to; p++) {
         s->WriteRef(*p);
       }
       s->Write<int32_t>(type->ptr()->parameterized_class_id_);
       s->WriteTokenPosition(type->ptr()->token_pos_);
       s->Write<int16_t>(type->ptr()->index_);
-      s->Write<uint8_t>(type->ptr()->parent_level_);
       s->Write<int8_t>(type->ptr()->type_state_);
     }
   }
 
  private:
   GrowableArray<RawTypeParameter*> objects_;
 };
 #endif  // !DART_PRECOMPILED_RUNTIME
 
 
@@ skipping 21 matching lines @@
       Deserializer::InitializeHeader(
           type, kTypeParameterCid, TypeParameter::InstanceSize(), is_vm_object);
       RawObject** from = type->from();
       RawObject** to = type->to();
       for (RawObject** p = from; p <= to; p++) {
         *p = d->ReadRef();
       }
       type->ptr()->parameterized_class_id_ = d->Read<int32_t>();
       type->ptr()->token_pos_ = d->ReadTokenPosition();
       type->ptr()->index_ = d->Read<int16_t>();
-      type->ptr()->parent_level_ = d->Read<uint8_t>();
       type->ptr()->type_state_ = d->Read<int8_t>();
     }
   }
 };
 
 
 #if !defined(DART_PRECOMPILED_RUNTIME)
 class BoundedTypeSerializationCluster : public SerializationCluster {
  public:
   BoundedTypeSerializationCluster() {}
@@ skipping 2321 matching lines @@
     thread_->isolate()->SetupImagePage(data_buffer_,
                                        /* is_executable */ false);
   }
 
   deserializer.ReadIsolateSnapshot(thread_->isolate()->object_store());
 
   return ApiError::null();
 }
 
 }  // namespace dart