Revert "Reland "Optimize function across closures.""

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index c500212b0a708c494ca10c35212458266f95fe2b..72974a317c18646800178b4c10340a85b444afcf 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1358,14 +1358,6 @@ Handle<JSObject> Factory::NewFunctionPrototype(Handle<JSFunction> function) {
 }
 
 
-static bool ShouldOptimizeNewClosure(Isolate* isolate,
-                                     Handle<SharedFunctionInfo> info) {
-  return isolate->use_crankshaft() && !info->is_toplevel() &&
-         info->is_compiled() && info->allows_lazy_compilation() &&
-         !info->optimization_disabled() && !isolate->DebuggerHasBreakPoints();
-}
-
-
 Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
     Handle<SharedFunctionInfo> info,
     Handle<Context> context,
@@ -1403,11 +1395,14 @@ Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
     return result;
   }
 
-  if (FLAG_always_opt && ShouldOptimizeNewClosure(isolate(), info)) {
+  if (isolate()->use_crankshaft() &&
+      FLAG_always_opt &&
+      result->is_compiled() &&
+      !info->is_toplevel() &&
+      info->allows_lazy_compilation() &&
+      !info->optimization_disabled() &&
+      !isolate()->DebuggerHasBreakPoints()) {
     result->MarkForOptimization();
-  } else if (info->optimize_next_closure() &&
-             ShouldOptimizeNewClosure(isolate(), info)) {
-    result->AttemptConcurrentOptimization();
   }
   return result;
 }