Implement 'dart:typeddata' directly in the VM instead of using 'dart:scalarlist'

runtime/vm/object_store.h

 // 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.
 
 #ifndef VM_OBJECT_STORE_H_
 #define VM_OBJECT_STORE_H_
 
 #include "vm/object.h"
 
 namespace dart {
@@ skipping 333 matching lines @@
     external_float32_array_class_ = value.raw();
   }
 
   RawClass* external_float64_array_class() const {
     return external_float64_array_class_;
   }
   void set_external_float64_array_class(const Class& value) {
     external_float64_array_class_ = value.raw();
   }
 
+  RawArray* typeddata_classes() const {
+    return typeddata_classes_;
+  }
+  void set_typeddata_classes(const Array& value) {
+    typeddata_classes_ = value.raw();
+  }
+
   RawClass* stacktrace_class() const {
     return stacktrace_class_;
   }
   void set_stacktrace_class(const Class& value) {
     stacktrace_class_ = value.raw();
   }
   static intptr_t stacktrace_class_offset() {
     return OFFSET_OF(ObjectStore, stacktrace_class_);
   }
 
@@ skipping 271 matching lines @@
   RawClass* external_uint8_clamped_array_class_;
   RawClass* external_int16_array_class_;
   RawClass* external_uint16_array_class_;
   RawClass* external_int32_array_class_;
   RawClass* external_uint32_array_class_;
   RawClass* external_int64_array_class_;
   RawClass* external_uint64_array_class_;
   RawClass* external_float32x4_array_class_;
   RawClass* external_float32_array_class_;
   RawClass* external_float64_array_class_;
+  RawArray* typeddata_classes_;
   RawClass* stacktrace_class_;
   RawClass* jsregexp_class_;
   RawClass* weak_property_class_;
   RawArray* symbol_table_;
   RawArray* canonical_type_arguments_;
   RawLibrary* async_library_;
   RawLibrary* builtin_library_;
   RawLibrary* core_library_;
   RawLibrary* core_impl_library_;
   RawLibrary* collection_library_;
@@ skipping 24 matching lines @@
   RawObject** to() { return reinterpret_cast<RawObject**>(&keyword_symbols_); }
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_