Introduce the Error object class in the vm. It represents all of the

runtime/vm/object_store.h

 // Copyright (c) 2011, 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 32 matching lines @@
     kOneByteStringClass,
     kTwoByteStringClass,
     kFourByteStringClass,
     kExternalOneByteStringClass,
     kExternalTwoByteStringClass,
     kExternalFourByteStringClass,
     kBoolClass,
     kArrayClass,
     kImmutableArrayClass,
     kByteBufferClass,
-    kUnhandledExceptionClass,
     kStacktraceClass,
     kJSRegExpClass,
     kMaxId,
     kInvalidIndex = -1,
   };
 
   ~ObjectStore();
 
   RawClass* object_class() const { return object_class_; }
   void set_object_class(const Class& value) { object_class_ = value.raw(); }
@@ skipping 121 matching lines @@
   RawClass* immutable_array_class() const { return immutable_array_class_; }
   void set_immutable_array_class(const Class& value) {
     immutable_array_class_ = value.raw();
   }
 
   RawClass* byte_buffer_class() const { return byte_buffer_class_; }
   void set_byte_buffer_class(const Class& value) {
     byte_buffer_class_ = value.raw();
   }
 
-  RawClass* unhandled_exception_class() const {
-    return unhandled_exception_class_;
-  }
-  void set_unhandled_exception_class(const Class& value) {
-    unhandled_exception_class_ = value.raw();
-  }
-  static intptr_t unhandled_exception_class_offset() {
-    return OFFSET_OF(ObjectStore, unhandled_exception_class_);
-  }
-
   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 119 matching lines @@
   RawClass* four_byte_string_class_;
   RawClass* external_one_byte_string_class_;
   RawClass* external_two_byte_string_class_;
   RawClass* external_four_byte_string_class_;
   RawType* bool_interface_;
   RawClass* bool_class_;
   RawType* list_interface_;
   RawClass* array_class_;
   RawClass* immutable_array_class_;
   RawClass* byte_buffer_class_;
-  RawClass* unhandled_exception_class_;
   RawClass* stacktrace_class_;
   RawClass* jsregexp_class_;
   RawBool* true_value_;
   RawBool* false_value_;
   RawArray* empty_array_;
   RawArray* symbol_table_;
   RawArray* canonical_type_arguments_;
   RawLibrary* core_library_;
   RawLibrary* core_impl_library_;
   RawLibrary* native_wrappers_library_;
   RawLibrary* root_library_;
   RawLibrary* registered_libraries_;
   RawArray* pending_classes_;
   RawString* sticky_error_;
   RawContext* empty_context_;
   RawInstance* stack_overflow_;
   RawInstance* out_of_memory_;
   RawObject** to() { return reinterpret_cast<RawObject**>(&out_of_memory_); }
 
   bool preallocate_objects_called_;
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_