Canonicalize generic types in an isolate specific hash table

runtime/vm/object_store.cc

 // Copyright (c) 2013, 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_store.h"
 
 #include "vm/exceptions.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 38 matching lines @@
     array_type_(Type::null()),
     immutable_array_class_(Class::null()),
     growable_object_array_class_(Class::null()),
     linked_hash_map_class_(Class::null()),
     float32x4_class_(Class::null()),
     int32x4_class_(Class::null()),
     float64x2_class_(Class::null()),
     error_class_(Class::null()),
     weak_property_class_(Class::null()),
     symbol_table_(Array::null()),
+    canonical_types_(Array::null()),
     canonical_type_arguments_(Array::null()),
     async_library_(Library::null()),
     builtin_library_(Library::null()),
     core_library_(Library::null()),
     collection_library_(Library::null()),
     convert_library_(Library::null()),
     developer_library_(Library::null()),
     internal_library_(Library::null()),
     isolate_library_(Library::null()),
     math_library_(Library::null()),
@@ skipping 137 matching lines @@
   ASSERT(!cls.IsNull());
   set_stream_iterator_class(cls);
 
   const Library& internal_lib = Library::Handle(internal_library());
   cls = internal_lib.LookupClass(Symbols::Symbol());
   set_symbol_class(cls);
 #endif
 }
 
 }  // namespace dart