Revert "Directly remove slot buffer entries in deoptimized code objects."

src/deoptimizer.cc

Index: src/deoptimizer.cc
diff --git a/src/deoptimizer.cc b/src/deoptimizer.cc
index 587fc0946a9157caa542a45696d449503b6c4246..2c82c72ef7875a2541a468ee33085068afff32d0 100644
--- a/src/deoptimizer.cc
+++ b/src/deoptimizer.cc
@@ -414,11 +414,9 @@ void Deoptimizer::DeoptimizeMarkedCodeForContext(Context* context) {
     PatchCodeForDeoptimization(isolate, codes[i]);
 
     // We might be in the middle of incremental marking with compaction.
-    // Ignore all slots that might have been recorded in the body of the
-    // deoptimized code object.
-    Code* code = codes[i];
-    isolate->heap()->mark_compact_collector()->RemoveObjectSlots(
-        code->instruction_start(), code->address() + code->Size());
+    // Tell collector to treat this code object in a special way and
+    // ignore all slots that might have been recorded on it.
+    isolate->heap()->mark_compact_collector()->InvalidateCode(codes[i]);
   }
 }