Optimize functions on a second thread.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index cd853809c2599d242d4b384b07adda6ea011e179..8877bb6d6f07fe96fa4283c4b92815ecaeeced62 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -33,7 +33,7 @@
 #include "elements-kind.h"
 #include "list.h"
 #include "property-details.h"
-#include "smart-array-pointer.h"
+#include "smart-pointers.h"
 #include "unicode-inl.h"
 #if V8_TARGET_ARCH_ARM
 #include "arm/constants-arm.h"
@@ -5989,6 +5989,7 @@ class JSFunction: public JSObject {
   // Mark this function for lazy recompilation. The function will be
   // recompiled the next time it is executed.
   void MarkForLazyRecompilation();
+  void MarkForParallelRecompilation();
 
   // Helpers to compile this function.  Returns true on success, false on
   // failure (e.g., stack overflow during compilation).
@@ -6003,6 +6004,11 @@ class JSFunction: public JSObject {
   // Tells whether or not the function is already marked for lazy
   // recompilation.
   inline bool IsMarkedForLazyRecompilation();
+  inline bool IsMarkedForParallelRecompilation();
+
+  // Tells whether or not the function is on the parallel
+  // recompilation queue.
+  inline bool IsInRecompileQueue();
 
   // Check whether or not this function is inlineable.
   bool IsInlineable();