Contribution of PowerPC port (continuation of 422063005) - PPC dir update 2

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 8c3fce930ed6732c281a46ed83cd30a915a52b39..2c8367d7a1b26a480dd9be27dc0ff14fc2ac0fda 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -83,7 +83,6 @@ void ThreadLocalTop::InitializeInternal() {
   failed_access_check_callback_ = NULL;
   save_context_ = NULL;
   catcher_ = NULL;
-  top_lookup_result_ = NULL;
   promise_on_stack_ = NULL;
 
   // These members are re-initialized later after deserialization
@@ -207,9 +206,6 @@ void Isolate::Iterate(ObjectVisitor* v, ThreadLocalTop* thread) {
   for (StackFrameIterator it(this, thread); !it.done(); it.Advance()) {
     it.frame()->Iterate(v);
   }
-
-  // Iterate pointers in live lookup results.
-  thread->top_lookup_result_->Iterate(v);
 }
 
 
@@ -2598,9 +2594,8 @@ void Isolate::CheckDetachedContextsAfterGC() {
       detached_contexts->set(new_length, Smi::FromInt(mark_sweeps + 1));
       detached_contexts->set(new_length + 1, cell);
       new_length += 2;
-    } else {
-      counters()->detached_context_age_in_gc()->AddSample(mark_sweeps);
     }
+    counters()->detached_context_age_in_gc()->AddSample(mark_sweeps + 1);
   }
   if (FLAG_trace_detached_contexts) {
     PrintF("%d detached contexts are collected out of %d\n",