Introduce a base pointer field in FixedTypedArrayBase and teach GC about it

src/objects.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <iomanip>
 #include <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 1460 matching lines @@
       break;
 
     case HEAP_NUMBER_TYPE:
     case MUTABLE_HEAP_NUMBER_TYPE:
     case FLOAT32X4_TYPE:
     case FILLER_TYPE:
     case BYTE_ARRAY_TYPE:
     case FREE_SPACE_TYPE:
       break;
 
-#define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size)                        \
-    case EXTERNAL_##TYPE##_ARRAY_TYPE:                                         \
-    case FIXED_##TYPE##_ARRAY_TYPE:                                            \
-      break;
+#define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \
+  case EXTERNAL_##TYPE##_ARRAY_TYPE:                    \
+    break;                                              \
+                                                        \
+  case FIXED_##TYPE##_ARRAY_TYPE:                       \
+    reinterpret_cast<FixedTypedArrayBase*>(this)        \
+        ->FixedTypedArrayBaseIterateBody(v);            \
+    break;
+
 
     TYPED_ARRAYS(TYPED_ARRAY_CASE)
 #undef TYPED_ARRAY_CASE
 
     case SHARED_FUNCTION_INFO_TYPE: {
       SharedFunctionInfo::BodyDescriptor::IterateBody(this, v);
       break;
     }
 
 #define MAKE_STRUCT_CASE(NAME, Name, name) \
@@ skipping 15132 matching lines @@
                                             Handle<Object> new_value) {
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 }  // namespace internal
 }  // namespace v8