correctly invalidate global cells

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 6f00abc7ae62cc4289c4da06cf2be1e893041f1b..812311f7c8f1be51559cbf575eac937897f81ad2 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -1513,8 +1513,6 @@ void V8HeapExplorer::ExtractCellReferences(int entry, Cell* cell) {
 void V8HeapExplorer::ExtractPropertyCellReferences(int entry,
                                                    PropertyCell* cell) {
   ExtractCellReferences(entry, cell);
-  SetInternalReference(cell, entry, "type", cell->type(),
-                       PropertyCell::kTypeOffset);
   MarkAsWeakContainer(cell->dependent_code());
   SetInternalReference(cell, entry, "dependent_code", cell->dependent_code(),
                        PropertyCell::kDependentCodeOffset);