Add VM class for Map/LinkedHashMap.

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 26 matching lines @@
     one_byte_string_class_(Class::null()),
     two_byte_string_class_(Class::null()),
     external_one_byte_string_class_(Class::null()),
     external_two_byte_string_class_(Class::null()),
     bool_type_(Type::null()),
     bool_class_(Class::null()),
     array_class_(Class::null()),
     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()),
     typed_data_classes_(Array::null()),
     error_class_(Class::null()),
     stacktrace_class_(Class::null()),
     weak_property_class_(Class::null()),
     symbol_table_(Array::null()),
     canonical_type_arguments_(Array::null()),
     async_library_(Library::null()),
@@ skipping 92 matching lines @@
       Stacktrace::Handle(Stacktrace::New(code_array, pc_offset_array));
   // Expansion of inlined functions requires additional memory at run time,
   // avoid it.
   stack_trace.set_expand_inlined(false);
   set_preallocated_stack_trace(stack_trace);
 
   return true;
 }
 
 }  // namespace dart