Revert of Remove the weak list of array buffers

src/heap-snapshot-generator.cc

Index: src/heap-snapshot-generator.cc
diff --git a/src/heap-snapshot-generator.cc b/src/heap-snapshot-generator.cc
index 34db11ba5d8f197b01924adea218d5e82c163463..654cda4644f9c00f423693ca6d8e91a8b5da982c 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -1566,6 +1566,8 @@
 
 void V8HeapExplorer::ExtractJSArrayBufferReferences(
     int entry, JSArrayBuffer* buffer) {
+  SetWeakReference(buffer, entry, "weak_next", buffer->weak_next(),
+                   JSArrayBuffer::kWeakNextOffset);
   // Setup a reference to a native memory backing_store object.
   if (!buffer->backing_store())
     return;