Revert "[SAB] Move Atomics builtins to C++"

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 1800e9bd9878982e63b92d04885e62d6ab0d9092..c504237baf9351cc2f156c257b04e45601a09ae2 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -178,6 +178,8 @@ using v8::MemoryPressureLevel;
   V(Object, instanceof_cache_map, InstanceofCacheMap)                          \
   V(Object, instanceof_cache_answer, InstanceofCacheAnswer)                    \
   V(FixedArray, natives_source_cache, NativesSourceCache)                      \
+  V(FixedArray, experimental_natives_source_cache,                             \
+    ExperimentalNativesSourceCache)                                            \
   V(FixedArray, extra_natives_source_cache, ExtraNativesSourceCache)           \
   V(FixedArray, experimental_extra_natives_source_cache,                       \
     ExperimentalExtraNativesSourceCache)                                       \