Re-enable optimization for hot functions that have optimization disabled due to many deopts.

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 90810170a6e3f26c4c015981f7119db6e226cf1c..dce346e09391ce94de7346230ed760a8d22afc91 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -3010,7 +3010,6 @@ MaybeObject* Heap::AllocateSharedFunctionInfo(Object* name) {
   share->set_this_property_assignments(undefined_value(), SKIP_WRITE_BARRIER);
   share->set_ast_node_count(0);
   share->set_deopt_counter(FLAG_deopt_every_n_times);
-  share->set_ic_age(0);
 
   // Set integer fields (smi or int, depending on the architecture).
   share->set_length(0);
@@ -3024,6 +3023,8 @@ MaybeObject* Heap::AllocateSharedFunctionInfo(Object* name) {
   share->set_compiler_hints(0);
   share->set_this_property_assignments_count(0);
   share->set_opt_count(0);
+  share->set_ic_age(0);
+  share->set_opt_reenable_tries(0);
 
   return share;
 }