Revert trunk to version 3.16.4.

src/mark-compact.cc

Index: src/mark-compact.cc
diff --git a/src/mark-compact.cc b/src/mark-compact.cc
index 9cfe5e04821ae38592dfa77edcc03e48fe787b69..d867197d7c563dad3957ca593cb8208bbbe510c6 100644
--- a/src/mark-compact.cc
+++ b/src/mark-compact.cc
@@ -835,6 +835,8 @@ 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();
 }
 
 
@@ -933,16 +935,6 @@ void CodeFlusher::ProcessSharedFunctionInfoCandidates() {
 }
 
 
-bool CodeFlusher::ContainsCandidate(SharedFunctionInfo* shared_info) {
-  SharedFunctionInfo* candidate = shared_function_info_candidates_head_;
-  while (candidate != NULL) {
-    if (candidate == shared_info) return true;
-    candidate = GetNextCandidate(candidate);
-  }
-  return false;
-}
-
-
 void CodeFlusher::EvictCandidate(SharedFunctionInfo* shared_info) {
   // The function is no longer a candidate, make sure it gets visited
   // again so that previous flushing decisions are revisited.
@@ -2067,7 +2059,6 @@ 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;
@@ -3107,9 +3098,6 @@ 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(