diff --git a/pkg/front_end/lib/src/fasta/kernel/body_builder.dart b/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
index 264bbc2..3555b29 100644
--- a/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
@@ -703,7 +703,8 @@
     if (count == 0) {
       push(NullValue.Metadata);
     } else {
-      push(const GrowableList<Expression>().pop(stack, count) ??
+      push(const GrowableList<Expression>()
+              .popNonNullable(stack, count, dummyExpression) ??
           NullValue.Metadata /* Ignore parser recovery */);
     }
   }
diff --git a/pkg/front_end/lib/src/fasta/kernel/inference_visitor.dart b/pkg/front_end/lib/src/fasta/kernel/inference_visitor.dart
index e11111a..946ce03 100644
--- a/pkg/front_end/lib/src/fasta/kernel/inference_visitor.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/inference_visitor.dart
@@ -6343,9 +6343,10 @@
 
     Set<Field?>? enumFields;
     if (expressionType is InterfaceType && expressionType.classNode.isEnum) {
-      enumFields = expressionType.classNode.fields
-          .where((Field field) => field.isConst && field.type == expressionType)
-          .toSet();
+      enumFields = <Field?>{
+        ...expressionType.classNode.fields.where(
+            (Field field) => field.isConst && field.type == expressionType)
+      };
       if (expressionType.isPotentiallyNullable) {
         enumFields.add(null);
       }
diff --git a/runtime/platform/utils.h b/runtime/platform/utils.h
index a1d6b1b..84366eb 100644
--- a/runtime/platform/utils.h
+++ b/runtime/platform/utils.h
@@ -417,34 +417,26 @@
     return ((-0x20000000000000LL <= value) && (value <= 0x20000000000000LL));
   }
 
-  static constexpr uword NBitMaskUnsafe(uint32_t n) {
-    static_assert((sizeof(uword) * kBitsPerByte) == kBitsPerWord,
-                  "Unexpected uword size");
-    return n == kBitsPerWord ? std::numeric_limits<uword>::max()
-                             : (static_cast<uword>(1) << n) - 1;
-  }
-
   // The lowest n bits are 1, the others are 0.
-  static uword NBitMask(uint32_t n) {
-    ASSERT(n <= kBitsPerWord);
-    return NBitMaskUnsafe(n);
-  }
-
-  static word SignedNBitMask(uint32_t n) {
-    uword mask = NBitMask(n);
-    return bit_cast<word>(mask);
+  template <typename T = uword>
+  static constexpr T NBitMask(size_t n) {
+    using Unsigned = typename std::make_unsigned<T>::type;
+    constexpr size_t kBitsPerT = sizeof(T) * kBitsPerByte;
+    assert(n <= sizeof(T) * kBitsPerT);
+    return static_cast<T>(n == kBitsPerT ? std::numeric_limits<Unsigned>::max()
+                                         : (static_cast<Unsigned>(1) << n) - 1);
   }
 
   template <typename T = uword>
-  static T Bit(uint32_t n) {
+  static constexpr T Bit(size_t n) {
     ASSERT(n < sizeof(T) * kBitsPerByte);
     T bit = 1;
     return bit << n;
   }
 
   template <typename T>
-  DART_FORCE_INLINE static bool TestBit(T mask, intptr_t position) {
-    ASSERT(position < static_cast<intptr_t>(sizeof(T) * kBitsPerByte));
+  static constexpr bool TestBit(T mask, size_t position) {
+    ASSERT(position < sizeof(T) * kBitsPerByte);
     return ((mask >> position) & 1) != 0;
   }
 
diff --git a/runtime/vm/clustered_snapshot.cc b/runtime/vm/clustered_snapshot.cc
index 4a6ac6b..b7e0aef 100644
--- a/runtime/vm/clustered_snapshot.cc
+++ b/runtime/vm/clustered_snapshot.cc
@@ -5583,6 +5583,7 @@
                             DECLARE_OBJECT_STORE_FIELD,
                             DECLARE_OBJECT_STORE_FIELD,
                             DECLARE_OBJECT_STORE_FIELD,
+                            DECLARE_OBJECT_STORE_FIELD,
                             DECLARE_OBJECT_STORE_FIELD)
 #undef DECLARE_OBJECT_STORE_FIELD
 };
diff --git a/runtime/vm/code_descriptors.h b/runtime/vm/code_descriptors.h
index 0d15c38..ac29be7 100644
--- a/runtime/vm/code_descriptors.h
+++ b/runtime/vm/code_descriptors.h
@@ -209,7 +209,7 @@
   using ArgField = BitField<int32_t, int32_t, OpField::kNextBit>;
 
   static constexpr int32_t kMaxArgValue =
-      Utils::NBitMaskUnsafe(ArgField::bitsize() - 1);
+      Utils::NBitMask<int32_t>(ArgField::bitsize() - 1);
   static constexpr int32_t kMinArgValue = ~kMaxArgValue;
   static constexpr int32_t kSignBits = static_cast<uint32_t>(kMinArgValue) << 1;
 };
diff --git a/runtime/vm/compiler/aot/precompiler.cc b/runtime/vm/compiler/aot/precompiler.cc
index 14d118a..35ca895 100644
--- a/runtime/vm/compiler/aot/precompiler.cc
+++ b/runtime/vm/compiler/aot/precompiler.cc
@@ -612,7 +612,6 @@
         IG->object_store()->set_pragma_name(null_field);
         IG->object_store()->set_pragma_options(null_field);
         IG->object_store()->set_completer_class(null_class);
-        IG->object_store()->set_symbol_class(null_class);
         IG->object_store()->set_compiletime_error_class(null_class);
         IG->object_store()->set_growable_list_factory(null_function);
         IG->object_store()->set_simple_instance_of_function(null_function);
diff --git a/runtime/vm/compiler/backend/il_arm.cc b/runtime/vm/compiler/backend/il_arm.cc
index 0c07ad2..5ede916 100644
--- a/runtime/vm/compiler/backend/il_arm.cc
+++ b/runtime/vm/compiler/backend/il_arm.cc
@@ -779,8 +779,8 @@
   const intptr_t kCpuRegistersToPreserve =
       kDartAvailableCpuRegs & ~kNonChangeableInputRegs;
   const intptr_t kFpuRegistersToPreserve =
-      Utils::SignedNBitMask(kNumberOfFpuRegisters) &
-      ~(Utils::SignedNBitMask(kAbiPreservedFpuRegCount)
+      Utils::NBitMask<intptr_t>(kNumberOfFpuRegisters) &
+      ~(Utils::NBitMask<intptr_t>(kAbiPreservedFpuRegCount)
         << kAbiFirstPreservedFpuReg) &
       ~(1 << FpuTMP);
 
diff --git a/runtime/vm/compiler/backend/il_arm64.cc b/runtime/vm/compiler/backend/il_arm64.cc
index d8cebd7..9484c260 100644
--- a/runtime/vm/compiler/backend/il_arm64.cc
+++ b/runtime/vm/compiler/backend/il_arm64.cc
@@ -699,7 +699,7 @@
   const intptr_t kCpuRegistersToPreserve =
       kDartAvailableCpuRegs & ~kNonChangeableInputRegs;
   const intptr_t kFpuRegistersToPreserve =
-      Utils::SignedNBitMask(kNumberOfFpuRegisters) & ~(1l << FpuTMP);
+      Utils::NBitMask<intptr_t>(kNumberOfFpuRegisters) & ~(1l << FpuTMP);
 
   const intptr_t kNumTemps = (Utils::CountOneBits64(kCpuRegistersToPreserve) +
                               Utils::CountOneBits64(kFpuRegistersToPreserve));
diff --git a/runtime/vm/compiler/runtime_offsets_extracted.h b/runtime/vm/compiler/runtime_offsets_extracted.h
index e1f330e..99f76c0 100644
--- a/runtime/vm/compiler/runtime_offsets_extracted.h
+++ b/runtime/vm/compiler/runtime_offsets_extracted.h
@@ -195,16 +195,16 @@
     IsolateGroup_cached_class_table_table_offset = 16;
 static constexpr dart::compiler::target::word Isolate_single_step_offset = 36;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 16;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 12;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 24;
+    LinkedHashBase_deleted_keys_offset = 20;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    12;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 8;
+    8;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 24;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 4;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 8;
@@ -220,11 +220,12 @@
     12;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    176;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 116;
+    184;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 124;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    204;
-static constexpr dart::compiler::target::word ObjectStore_type_type_offset = 96;
+    212;
+static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
+    104;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 12;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 4;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset = 8;
@@ -737,16 +738,16 @@
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_single_step_offset = 72;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 32;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 24;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 48;
+    LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    24;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 16;
+    16;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 48;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    40;
+    32;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -762,12 +763,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -1285,16 +1286,16 @@
     IsolateGroup_cached_class_table_table_offset = 16;
 static constexpr dart::compiler::target::word Isolate_single_step_offset = 36;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 16;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 12;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 24;
+    LinkedHashBase_deleted_keys_offset = 20;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    12;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 8;
+    8;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 24;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 4;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 8;
@@ -1310,11 +1311,12 @@
     12;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    176;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 116;
+    184;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 124;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    204;
-static constexpr dart::compiler::target::word ObjectStore_type_type_offset = 96;
+    212;
+static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
+    104;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 12;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 4;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset = 8;
@@ -1824,16 +1826,16 @@
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_single_step_offset = 72;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 32;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 24;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 48;
+    LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    24;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 16;
+    16;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 48;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    40;
+    32;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -1849,12 +1851,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -2373,16 +2375,16 @@
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_single_step_offset = 72;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 20;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 28;
+    LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    16;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 12;
+    12;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 28;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    24;
+    20;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -2398,12 +2400,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -2921,16 +2923,16 @@
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_single_step_offset = 72;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 20;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 28;
+    LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    16;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 12;
+    12;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 28;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    24;
+    20;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -2946,12 +2948,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -3466,16 +3468,16 @@
 static constexpr dart::compiler::target::word
     IsolateGroup_cached_class_table_table_offset = 16;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 16;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 12;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 24;
+    LinkedHashBase_deleted_keys_offset = 20;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    12;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 8;
+    8;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 24;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 4;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 8;
@@ -3491,11 +3493,12 @@
     12;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    176;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 116;
+    184;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 124;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    204;
-static constexpr dart::compiler::target::word ObjectStore_type_type_offset = 96;
+    212;
+static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
+    104;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 12;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 4;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset = 8;
@@ -4002,16 +4005,16 @@
 static constexpr dart::compiler::target::word
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 32;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 24;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 48;
+    LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    24;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 16;
+    16;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 48;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    40;
+    32;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -4027,12 +4030,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -4544,16 +4547,16 @@
 static constexpr dart::compiler::target::word
     IsolateGroup_cached_class_table_table_offset = 16;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 16;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 12;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 24;
+    LinkedHashBase_deleted_keys_offset = 20;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    12;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 8;
+    8;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 24;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 4;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 8;
@@ -4569,11 +4572,12 @@
     12;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    176;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 116;
+    184;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 124;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    204;
-static constexpr dart::compiler::target::word ObjectStore_type_type_offset = 96;
+    212;
+static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
+    104;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 12;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 4;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset = 8;
@@ -5077,16 +5081,16 @@
 static constexpr dart::compiler::target::word
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 32;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 24;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 48;
+    LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    24;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 16;
+    16;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 48;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    40;
+    32;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -5102,12 +5106,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -5620,16 +5624,16 @@
 static constexpr dart::compiler::target::word
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 20;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 28;
+    LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    16;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 12;
+    12;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 28;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    24;
+    20;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -5645,12 +5649,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -6162,16 +6166,16 @@
 static constexpr dart::compiler::target::word
     IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word Isolate_user_tag_offset = 32;
-static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 20;
+static constexpr dart::compiler::target::word LinkedHashBase_data_offset = 16;
 static constexpr dart::compiler::target::word
-    LinkedHashBase_deleted_keys_offset = 28;
+    LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word LinkedHashBase_hash_mask_offset =
-    16;
-static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 12;
+    12;
+static constexpr dart::compiler::target::word LinkedHashBase_index_offset = 28;
 static constexpr dart::compiler::target::word
     LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word LinkedHashBase_used_data_offset =
-    24;
+    20;
 static constexpr dart::compiler::target::word LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     MarkingStackBlock_pointers_offset = 16;
@@ -6187,12 +6191,12 @@
     24;
 static constexpr dart::compiler::target::word NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word ObjectStore_double_type_offset =
-    352;
-static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 232;
+    368;
+static constexpr dart::compiler::target::word ObjectStore_int_type_offset = 248;
 static constexpr dart::compiler::target::word ObjectStore_string_type_offset =
-    408;
+    424;
 static constexpr dart::compiler::target::word ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word OneByteString_data_offset = 16;
 static constexpr dart::compiler::target::word PointerBase_data_field_offset = 8;
 static constexpr dart::compiler::target::word Pointer_type_arguments_offset =
@@ -6731,17 +6735,17 @@
     36;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 16;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    16;
+    12;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 24;
+    AOT_LinkedHashBase_deleted_keys_offset = 20;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 12;
+    AOT_LinkedHashBase_hash_mask_offset = 8;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    8;
+    24;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 4;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 20;
+    AOT_LinkedHashBase_used_data_offset = 16;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 8;
@@ -6761,13 +6765,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 176;
+    AOT_ObjectStore_double_type_offset = 184;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    116;
+    124;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 204;
+    AOT_ObjectStore_string_type_offset = 212;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    96;
+    104;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     12;
 static constexpr dart::compiler::target::word
@@ -7338,17 +7342,17 @@
     72;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    32;
+    24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 48;
+    AOT_LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 24;
+    AOT_LinkedHashBase_hash_mask_offset = 16;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    16;
+    48;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 40;
+    AOT_LinkedHashBase_used_data_offset = 32;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -7368,13 +7372,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -7951,17 +7955,17 @@
     72;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    32;
+    24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 48;
+    AOT_LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 24;
+    AOT_LinkedHashBase_hash_mask_offset = 16;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    16;
+    48;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 40;
+    AOT_LinkedHashBase_used_data_offset = 32;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -7981,13 +7985,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -8561,17 +8565,17 @@
     72;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 28;
+    AOT_LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 16;
+    AOT_LinkedHashBase_hash_mask_offset = 12;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    12;
+    28;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 24;
+    AOT_LinkedHashBase_used_data_offset = 20;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -8591,13 +8595,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -9170,17 +9174,17 @@
     72;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 28;
+    AOT_LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 16;
+    AOT_LinkedHashBase_hash_mask_offset = 12;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    12;
+    28;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 24;
+    AOT_LinkedHashBase_used_data_offset = 20;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -9200,13 +9204,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -9775,17 +9779,17 @@
     AOT_IsolateGroup_cached_class_table_table_offset = 16;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 16;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    16;
+    12;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 24;
+    AOT_LinkedHashBase_deleted_keys_offset = 20;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 12;
+    AOT_LinkedHashBase_hash_mask_offset = 8;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    8;
+    24;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 4;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 20;
+    AOT_LinkedHashBase_used_data_offset = 16;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 8;
@@ -9805,13 +9809,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 176;
+    AOT_ObjectStore_double_type_offset = 184;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    116;
+    124;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 204;
+    AOT_ObjectStore_string_type_offset = 212;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    96;
+    104;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     12;
 static constexpr dart::compiler::target::word
@@ -10375,17 +10379,17 @@
     AOT_IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    32;
+    24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 48;
+    AOT_LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 24;
+    AOT_LinkedHashBase_hash_mask_offset = 16;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    16;
+    48;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 40;
+    AOT_LinkedHashBase_used_data_offset = 32;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -10405,13 +10409,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -10981,17 +10985,17 @@
     AOT_IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    32;
+    24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 48;
+    AOT_LinkedHashBase_deleted_keys_offset = 40;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 24;
+    AOT_LinkedHashBase_hash_mask_offset = 16;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    16;
+    48;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 40;
+    AOT_LinkedHashBase_used_data_offset = 32;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -11011,13 +11015,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -11584,17 +11588,17 @@
     AOT_IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 28;
+    AOT_LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 16;
+    AOT_LinkedHashBase_hash_mask_offset = 12;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    12;
+    28;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 24;
+    AOT_LinkedHashBase_used_data_offset = 20;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -11614,13 +11618,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
@@ -12186,17 +12190,17 @@
     AOT_IsolateGroup_cached_class_table_table_offset = 32;
 static constexpr dart::compiler::target::word AOT_Isolate_user_tag_offset = 32;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_data_offset =
-    20;
+    16;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_deleted_keys_offset = 28;
+    AOT_LinkedHashBase_deleted_keys_offset = 24;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_hash_mask_offset = 16;
+    AOT_LinkedHashBase_hash_mask_offset = 12;
 static constexpr dart::compiler::target::word AOT_LinkedHashBase_index_offset =
-    12;
+    28;
 static constexpr dart::compiler::target::word
     AOT_LinkedHashBase_type_arguments_offset = 8;
 static constexpr dart::compiler::target::word
-    AOT_LinkedHashBase_used_data_offset = 24;
+    AOT_LinkedHashBase_used_data_offset = 20;
 static constexpr dart::compiler::target::word AOT_LocalHandle_ptr_offset = 0;
 static constexpr dart::compiler::target::word
     AOT_MarkingStackBlock_pointers_offset = 16;
@@ -12216,13 +12220,13 @@
 static constexpr dart::compiler::target::word
     AOT_NativeArguments_thread_offset = 0;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_double_type_offset = 352;
+    AOT_ObjectStore_double_type_offset = 368;
 static constexpr dart::compiler::target::word AOT_ObjectStore_int_type_offset =
-    232;
+    248;
 static constexpr dart::compiler::target::word
-    AOT_ObjectStore_string_type_offset = 408;
+    AOT_ObjectStore_string_type_offset = 424;
 static constexpr dart::compiler::target::word AOT_ObjectStore_type_type_offset =
-    192;
+    208;
 static constexpr dart::compiler::target::word AOT_OneByteString_data_offset =
     16;
 static constexpr dart::compiler::target::word
diff --git a/runtime/vm/object.cc b/runtime/vm/object.cc
index c52f156..e7fb75d 100644
--- a/runtime/vm/object.cc
+++ b/runtime/vm/object.cc
@@ -18902,40 +18902,20 @@
   return true;
 }
 
-static ClassPtr EnsureSymbolClass(Thread* thread) {
-  ObjectStore* const store = thread->isolate_group()->object_store();
-
-  if (store->symbol_class() != Class::null()) {
-    return store->symbol_class();
-  }
-  Zone* const zone = thread->zone();
-  const auto& library = Library::Handle(zone, Library::InternalLibrary());
-  const auto& symbol_class =
-      Class::Handle(zone, library.LookupClass(Symbols::Symbol()));
-  ASSERT(!symbol_class.IsNull());
-  store->set_symbol_class(symbol_class);
-  return symbol_class.ptr();
-}
-
-bool Symbol::IsSymbolCid(classid_t class_id) {
-  Thread* const thread = Thread::Current();
-  Zone* const zone = thread->zone();
-
-  Class& symbol_class = Class::Handle(zone, EnsureSymbolClass(thread));
-
-  return class_id == symbol_class.id();
+bool Symbol::IsSymbolCid(Thread* thread, classid_t class_id) {
+  auto object_store = thread->isolate_group()->object_store();
+  return Class::GetClassId(object_store->symbol_class()) == class_id;
 }
 
 // Must be kept in sync with Symbol.hashCode in symbol_patch.dart
-uint32_t Symbol::CanonicalizeHash(const Instance& instance) {
-  ASSERT(IsSymbolCid(instance.GetClassId()));
+uint32_t Symbol::CanonicalizeHash(Thread* thread, const Instance& instance) {
+  ASSERT(IsSymbolCid(thread, instance.GetClassId()));
 
-  Thread* const thread = Thread::Current();
-  Zone* const zone = thread->zone();
+  auto zone = thread->zone();
+  auto object_store = thread->isolate_group()->object_store();
 
-  Class& symbol_class = Class::Handle(zone, EnsureSymbolClass(thread));
-  const auto& symbol_name_field = Field::Handle(
-      zone, symbol_class.LookupInstanceFieldAllowPrivate(Symbols::_name()));
+  const auto& symbol_name_field =
+      Field::Handle(zone, object_store->symbol_name_field());
   ASSERT(!symbol_name_field.IsNull());
 
   // Keep in sync with sdk/lib/_internal/vm/lib/symbol_patch.dart.
@@ -18956,10 +18936,12 @@
   }
   Zone* zone = thread->zone();
   const Class& cls = Class::Handle(zone, clazz());
+  const bool is_symbol = Symbol::IsSymbolCid(thread, cls.id());
+
   NoSafepointScope no_safepoint(thread);
 
-  if (Symbol::IsSymbolCid(GetClassId())) {
-    hash = Symbol::CanonicalizeHash(*this);
+  if (is_symbol) {
+    hash = Symbol::CanonicalizeHash(thread, *this);
   } else {
     const intptr_t class_id = cls.id();
     ASSERT(class_id != 0);
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index 718d4ca..39b4940 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -1328,8 +1328,7 @@
   // Check if this class represents the 'Closure' class.
   bool IsClosureClass() const { return id() == kClosureCid; }
   static bool IsClosureClass(ClassPtr cls) {
-    NoSafepointScope no_safepoint;
-    return cls->untag()->id_ == kClosureCid;
+    return GetClassId(cls) == kClosureCid;
   }
 
   static bool IsInFullSnapshot(ClassPtr cls) {
@@ -1338,6 +1337,11 @@
         cls->untag()->library()->untag()->flags_);
   }
 
+  static intptr_t GetClassId(ClassPtr cls) {
+    NoSafepointScope no_safepoint;
+    return cls->untag()->id_;
+  }
+
   // Returns true if the type specified by cls, type_arguments, and nullability
   // is a subtype of the other type.
   static bool IsSubtypeOf(const Class& cls,
@@ -9123,9 +9127,9 @@
 // TODO(http://dartbug.com/46716): Recognize Symbol in the VM.
 class Symbol : public AllStatic {
  public:
-  static bool IsSymbolCid(classid_t class_id);
+  static bool IsSymbolCid(Thread* thread, classid_t class_id);
 
-  static uint32_t CanonicalizeHash(const Instance& instance);
+  static uint32_t CanonicalizeHash(Thread* thread, const Instance& instance);
 };
 
 // String may not be '\0' terminated.
diff --git a/runtime/vm/object_store.cc b/runtime/vm/object_store.cc
index 9892d6f..ca90802 100644
--- a/runtime/vm/object_store.cc
+++ b/runtime/vm/object_store.cc
@@ -121,9 +121,9 @@
     Object& value = Object::Handle();
     static const char* const names[] = {
 #define EMIT_FIELD_NAME(type, name) #name "_",
-        OBJECT_STORE_FIELD_LIST(EMIT_FIELD_NAME, EMIT_FIELD_NAME,
-                                EMIT_FIELD_NAME, EMIT_FIELD_NAME,
-                                EMIT_FIELD_NAME, EMIT_FIELD_NAME)
+        OBJECT_STORE_FIELD_LIST(
+            EMIT_FIELD_NAME, EMIT_FIELD_NAME, EMIT_FIELD_NAME, EMIT_FIELD_NAME,
+            EMIT_FIELD_NAME, EMIT_FIELD_NAME, EMIT_FIELD_NAME)
 #undef EMIT_FIELD_NAME
     };
     ObjectPtr* current = from();
@@ -271,10 +271,6 @@
     }
   }
 
-  const Library& internal_lib = Library::Handle(zone, _internal_library());
-  cls = internal_lib.LookupClass(Symbols::Symbol());
-  set_symbol_class(cls);
-
   const Library& core_lib = Library::Handle(zone, core_library());
   cls = core_lib.LookupClassAllowPrivate(Symbols::_CompileTimeError());
   ASSERT(!cls.IsNull());
@@ -450,4 +446,29 @@
   }
 }
 
+void ObjectStore::LazyInitInternalMembers() {
+  auto* const thread = Thread::Current();
+  SafepointWriteRwLocker locker(thread,
+                                thread->isolate_group()->program_lock());
+  if (symbol_class_.load() == Type::null()) {
+    ASSERT(symbol_name_field_.load() == Field::null());
+
+    auto* const zone = thread->zone();
+    auto& cls = Class::Handle(zone);
+    auto& field = Field::Handle(zone);
+
+    const auto& internal_lib =
+        Library::Handle(zone, Library::InternalLibrary());
+    cls = internal_lib.LookupClass(Symbols::Symbol());
+    ASSERT(!cls.IsNull());
+    const auto& error = cls.EnsureIsFinalized(thread);
+    ASSERT(error == Error::null());
+    symbol_class_.store(cls.ptr());
+
+    field = cls.LookupInstanceFieldAllowPrivate(Symbols::_name());
+    ASSERT(!field.IsNull());
+    symbol_name_field_.store(field.ptr());
+  }
+}
+
 }  // namespace dart
diff --git a/runtime/vm/object_store.h b/runtime/vm/object_store.h
index 267ff50..cc50d4b 100644
--- a/runtime/vm/object_store.h
+++ b/runtime/vm/object_store.h
@@ -37,22 +37,26 @@
 // R_ - needs getter only
 // RW - needs getter and setter
 // ARW - needs getter and setter with atomic access
-// CR - needs lazy Core init getter
-// FR - needs lazy Async init getter
-// IR - needs lazy Isolate init getter
-#define OBJECT_STORE_FIELD_LIST(R_, RW, ARW, CR, FR, IR)                       \
-  CR(Class, list_class)                    /* maybe be null, lazily built */   \
-  CR(Type, non_nullable_list_rare_type)    /* maybe be null, lazily built */   \
-  CR(Type, non_nullable_map_rare_type)     /* maybe be null, lazily built */   \
-  CR(Function, _object_equals_function)    /* maybe be null, lazily built */   \
-  CR(Function, _object_hash_code_function) /* maybe be null, lazily built */   \
-  CR(Function, _object_to_string_function) /* maybe be null, lazily built */   \
-  FR(Type, non_nullable_future_rare_type)  /* maybe be null, lazily built */   \
-  FR(Type, non_nullable_future_never_type) /* maybe be null, lazily built */   \
-  FR(Type, nullable_future_null_type)      /* maybe be null, lazily built */   \
-  IR(Function, lookup_port_handler)        /* maybe be null, lazily built */   \
-  IR(Function, lookup_open_ports)          /* maybe be null, lazily built */   \
-  IR(Function, handle_message_function)    /* maybe be null, lazily built */   \
+// LAZY_CORE - needs lazy init getter for a "dart:core" member
+// LAZY_ASYNC - needs lazy init getter for a "dart:async" member
+// LAZY_ISOLATE - needs lazy init getter for a "dart:isolate" member
+// LAZY_INTERNAL - needs lazy init getter for a "dart:_internal" member
+#define OBJECT_STORE_FIELD_LIST(R_, RW, ARW, LAZY_CORE, LAZY_ASYNC,            \
+                                LAZY_ISOLATE, LAZY_INTERNAL)                   \
+  LAZY_CORE(Class, list_class)                                                 \
+  LAZY_CORE(Type, non_nullable_list_rare_type)                                 \
+  LAZY_CORE(Type, non_nullable_map_rare_type)                                  \
+  LAZY_CORE(Function, _object_equals_function)                                 \
+  LAZY_CORE(Function, _object_hash_code_function)                              \
+  LAZY_CORE(Function, _object_to_string_function)                              \
+  LAZY_INTERNAL(Class, symbol_class)                                           \
+  LAZY_INTERNAL(Field, symbol_name_field)                                      \
+  LAZY_ASYNC(Type, non_nullable_future_rare_type)                              \
+  LAZY_ASYNC(Type, non_nullable_future_never_type)                             \
+  LAZY_ASYNC(Type, nullable_future_null_type)                                  \
+  LAZY_ISOLATE(Function, lookup_port_handler)                                  \
+  LAZY_ISOLATE(Function, lookup_open_ports)                                    \
+  LAZY_ISOLATE(Function, handle_message_function)                              \
   RW(Class, object_class)                                                      \
   RW(Type, object_type)                                                        \
   RW(Type, legacy_object_type)                                                 \
@@ -116,7 +120,6 @@
   RW(Field, pragma_options)                                                    \
   RW(Class, future_class)                                                      \
   RW(Class, completer_class)                                                   \
-  RW(Class, symbol_class)                                                      \
   RW(Class, one_byte_string_class)                                             \
   RW(Class, two_byte_string_class)                                             \
   RW(Class, external_one_byte_string_class)                                    \
@@ -424,12 +427,15 @@
   DECLARE_LAZY_INIT_GETTER(Type, name, LazyInitAsyncMembers)
 #define DECLARE_LAZY_INIT_ISOLATE_GETTER(Type, name)                           \
   DECLARE_LAZY_INIT_GETTER(Type, name, LazyInitIsolateMembers)
+#define DECLARE_LAZY_INIT_INTERNAL_GETTER(Type, name)                          \
+  DECLARE_LAZY_INIT_GETTER(Type, name, LazyInitInternalMembers)
   OBJECT_STORE_FIELD_LIST(DECLARE_GETTER,
                           DECLARE_GETTER_AND_SETTER,
                           DECLARE_ATOMIC_GETTER_AND_SETTER,
                           DECLARE_LAZY_INIT_CORE_GETTER,
                           DECLARE_LAZY_INIT_ASYNC_GETTER,
-                          DECLARE_LAZY_INIT_ISOLATE_GETTER)
+                          DECLARE_LAZY_INIT_ISOLATE_GETTER,
+                          DECLARE_LAZY_INIT_INTERNAL_GETTER)
 #undef DECLARE_OFFSET
 #undef DECLARE_GETTER
 #undef DECLARE_GETTER_AND_SETTER
@@ -438,6 +444,7 @@
 #undef DECLARE_LAZY_INIT_CORE_GETTER
 #undef DECLARE_LAZY_INIT_ASYNC_GETTER
 #undef DECLARE_LAZY_INIT_ISOLATE_GETTER
+#undef DECLARE_LAZY_INIT_INTERNAL_GETTER
 
   LibraryPtr bootstrap_library(BootstrapLibraryId index) {
     switch (index) {
@@ -488,6 +495,7 @@
   void LazyInitCoreMembers();
   void LazyInitAsyncMembers();
   void LazyInitIsolateMembers();
+  void LazyInitInternalMembers();
 
   // Finds a core library private method in Object.
   FunctionPtr PrivateObjectLookup(const String& name);
@@ -503,6 +511,7 @@
                           DECLARE_ATOMIC_OBJECT_STORE_FIELD,
                           DECLARE_LAZY_OBJECT_STORE_FIELD,
                           DECLARE_LAZY_OBJECT_STORE_FIELD,
+                          DECLARE_LAZY_OBJECT_STORE_FIELD,
                           DECLARE_LAZY_OBJECT_STORE_FIELD)
 #undef DECLARE_OBJECT_STORE_FIELD
 #undef DECLARE_ATOMIC_OBJECT_STORE_FIELD
diff --git a/runtime/vm/raw_object.h b/runtime/vm/raw_object.h
index 3f7adfe..ac076be 100644
--- a/runtime/vm/raw_object.h
+++ b/runtime/vm/raw_object.h
@@ -3011,13 +3011,17 @@
 
   COMPRESSED_POINTER_FIELD(TypeArgumentsPtr, type_arguments)
   VISIT_FROM(type_arguments)
-  COMPRESSED_POINTER_FIELD(TypedDataPtr, index)
   COMPRESSED_POINTER_FIELD(SmiPtr, hash_mask)
   COMPRESSED_POINTER_FIELD(ArrayPtr, data)
   COMPRESSED_POINTER_FIELD(SmiPtr, used_data)
   COMPRESSED_POINTER_FIELD(SmiPtr, deleted_keys)
-  VISIT_TO(deleted_keys)
-  CompressedObjectPtr* to_snapshot(Snapshot::Kind kind) { return to(); }
+  COMPRESSED_POINTER_FIELD(TypedDataPtr, index)
+  VISIT_TO(index)
+
+  CompressedObjectPtr* to_snapshot(Snapshot::Kind kind) {
+    // Do not serialize index.
+    return reinterpret_cast<CompressedObjectPtr*>(&deleted_keys_);
+  }
 };
 
 class UntaggedLinkedHashMap : public UntaggedLinkedHashBase {
diff --git a/runtime/vm/v8_snapshot_writer.h b/runtime/vm/v8_snapshot_writer.h
index 644a2e0..c69abdc 100644
--- a/runtime/vm/v8_snapshot_writer.h
+++ b/runtime/vm/v8_snapshot_writer.h
@@ -58,7 +58,8 @@
    private:
     static constexpr size_t kIdSpaceBits =
         Utils::BitLength(static_cast<int64_t>(IdSpace::kArtificial));
-    static constexpr int64_t kIdSpaceMask = Utils::NBitMaskUnsafe(kIdSpaceBits);
+    static constexpr int64_t kIdSpaceMask =
+        Utils::NBitMask<int64_t>(kIdSpaceBits);
     static const char* IdSpaceToCString(IdSpace space);
 
     int64_t encoded_;
diff --git a/tests/co19_2/co19_2-co19.status b/tests/co19_2/co19_2-co19.status
index c281e44..3d7b0c2 100644
--- a/tests/co19_2/co19_2-co19.status
+++ b/tests/co19_2/co19_2-co19.status
@@ -2,5 +2,9 @@
 # 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.
 
-[ $compiler != fasta ]
-
+Language/Generics/Superbounded_types/typedef1_A01_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
+Language/Generics/Superbounded_types/typedef1_A01_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
+Language/Generics/Superbounded_types/typedef2_A01_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
+Language/Generics/typedef_A08_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
+Language/Generics/typedef_A08_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
+Language/Generics/typedef_A08_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
diff --git a/tests/co19_2/co19_2-dart2js.status b/tests/co19_2/co19_2-dart2js.status
index 5ba60fe..5c38055 100644
--- a/tests/co19_2/co19_2-dart2js.status
+++ b/tests/co19_2/co19_2-dart2js.status
@@ -6,6 +6,7 @@
 Language/Expressions/Null/instance_of_class_null_t01: SkipByDesign # dart:mirrors not supported https://github.com/dart-lang/co19/issues/522.
 Language/Expressions/Numbers/syntax_t06: SkipByDesign # uses integer literal not representable as JavaScript number
 Language/Expressions/Numbers/syntax_t09: SkipByDesign # uses integer literal not representable as JavaScript number
+Language/Expressions/Object_Identity/object_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/42222#issuecomment-640431711
 Language/Expressions/Spawning_an_Isolate/new_isolate_t01: SkipByDesign
 Language/Functions/External_Functions/not_connected_to_a_body_t01: SkipByDesign # Non-JS-interop external members are not supported
 Language/Libraries_and_Scripts/Scripts/top_level_syntax_t01: SkipByDesign # Non-JS-interop external members are not supported
diff --git a/tools/VERSION b/tools/VERSION
index 0149fdb..69aef05 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -27,5 +27,5 @@
 MAJOR 2
 MINOR 14
 PATCH 0
-PRERELEASE 355
+PRERELEASE 356
 PRERELEASE_PATCH 0
\ No newline at end of file