Revert "Inobject slack tracking is done on a per-closure basis instead of per-shared info basis."

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 1b84c89f5742b551b789fb8e34ea58a4c8a739f8..b20a25291d75cdc69452ddaa2d259830b7362e3a 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -508,6 +508,9 @@ void OptimizedCompileJob::RecordOptimizationStats() {
 // Sets the expected number of properties based on estimate from compiler.
 void SetExpectedNofPropertiesFromEstimate(Handle<SharedFunctionInfo> shared,
                                           int estimate) {
+  // See the comment in SetExpectedNofProperties.
+  if (shared->live_objects_may_exist()) return;
+
   // If no properties are added in the constructor, they are more likely
   // to be added later.
   if (estimate == 0) estimate = 2;