Add an optional bound to type parameter references

runtime/vm/kernel_binary.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.
 #if !defined(DART_PRECOMPILED_RUNTIME)
 
 #include "vm/kernel_binary.h"
 #include "platform/globals.h"
 #include "vm/flags.h"
 #include "vm/growable_array.h"
 #include "vm/kernel.h"
@@ skipping 1468 matching lines @@
   type->return_type_ = DartType::ReadFrom(reader);
   return type;
 }
 
 
 TypeParameterType* TypeParameterType::ReadFrom(Reader* reader) {
   TRACE_READ_OFFSET();
   TypeParameterType* type = new TypeParameterType();
   type->parameter_ =
       reader->helper()->type_parameters().Lookup(reader->ReadUInt());
+  // There is an optional promoted bound, currently ignored.
+  delete reader->ReadOptional<DartType>();
   return type;
 }
 
 
 VectorType* VectorType::ReadFrom(Reader* reader) {
   TRACE_READ_OFFSET();
   VectorType* type = new VectorType();
   return type;
 }
 
@@ skipping 89 matching lines @@
 
 kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
                                                  intptr_t buffer_length) {
   kernel::Reader reader(buffer, buffer_length);
   return kernel::Program::ReadFrom(&reader);
 }
 
 
 }  // namespace dart
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)