Reland r21442 "Inobject slack tracking is done on a per-closure basis instead of per-shared info ba…

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 4e55d223806f63242cc877f33607dbedfea777a3..f1736c1a0498f974932d0f9e0b2d13aa4a0acc9f 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -510,9 +510,6 @@ 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;