Reland of "[heap] Report wrappers after processing the marking deque incrementally"

src/heap/mark-compact.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/heap/mark-compact.h"
 
 #include "src/base/atomicops.h"
 #include "src/base/bits.h"
 #include "src/base/sys-info.h"
 #include "src/code-stubs.h"
@@ skipping 2118 matching lines @@
 // Mark all objects reachable (transitively) from objects on the marking
 // stack including references only considered in the atomic marking pause.
 void MarkCompactCollector::ProcessEphemeralMarking(
     ObjectVisitor* visitor, bool only_process_harmony_weak_collections) {
   DCHECK(marking_deque()->IsEmpty() && !marking_deque()->overflowed());
   bool work_to_do = true;
   while (work_to_do) {
     if (!only_process_harmony_weak_collections) {
       if (heap_->local_embedder_heap_tracer()->InUse()) {
         TRACE_GC(heap()->tracer(), GCTracer::Scope::MC_MARK_WRAPPER_TRACING);
+        heap_->local_embedder_heap_tracer()->RegisterWrappersWithRemoteTracer();
         heap_->local_embedder_heap_tracer()->Trace(
             0,
             EmbedderHeapTracer::AdvanceTracingActions(
                 EmbedderHeapTracer::ForceCompletionAction::FORCE_COMPLETION));
       } else {
         TRACE_GC(heap()->tracer(), GCTracer::Scope::MC_MARK_OBJECT_GROUPING);
         isolate()->global_handles()->IterateObjectGroups(
             visitor, &IsUnmarkedHeapObjectWithHeap);
         MarkImplicitRefGroups(&MarkCompactMarkingVisitor::MarkObject);
       }
@@ skipping 1932 matching lines @@
       // The target is always in old space, we don't have to record the slot in
       // the old-to-new remembered set.
       DCHECK(!heap()->InNewSpace(target));
       RecordRelocSlot(host, &rinfo, target);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8