Fire 'stack' getter of error objects after GC.

src/mark-compact.cc

Index: src/mark-compact.cc
diff --git a/src/mark-compact.cc b/src/mark-compact.cc
index 1af3074f36c48f27c0689d2753ab865f8015447b..75a4378074e93f3e3156f68837ac96ae27cd64d4 100644
--- a/src/mark-compact.cc
+++ b/src/mark-compact.cc
@@ -834,8 +834,6 @@ void MarkCompactCollector::Finish() {
   // GC, because it relies on the new address of certain old space
   // objects (empty string, illegal builtin).
   heap()->isolate()->stub_cache()->Clear();
-
-  heap()->external_string_table_.CleanUp();
 }
 
 
@@ -2062,6 +2060,7 @@ void MarkCompactCollector::AfterMarking() {
   symbol_table->ElementsRemoved(v.PointersRemoved());
   heap()->external_string_table_.Iterate(&v);
   heap()->external_string_table_.CleanUp();
+  heap()->error_object_list_.RemoveUnmarked(heap());
 
   // Process the weak references.
   MarkCompactWeakObjectRetainer mark_compact_object_retainer;
@@ -3101,6 +3100,9 @@ void MarkCompactCollector::EvacuateNewSpaceAndCandidates() {
   heap_->UpdateReferencesInExternalStringTable(
       &UpdateReferenceInExternalStringTableEntry);
 
+  // Update pointers in the new error object list.
+  heap_->error_object_list()->UpdateReferences();
+
   if (!FLAG_watch_ic_patching) {
     // Update JSFunction pointers from the runtime profiler.
     heap()->isolate()->runtime_profiler()->UpdateSamplesAfterCompact(