Only flush not yet started and finished compile jobs from gc

src/compiler-dispatcher/optimizing-compile-dispatcher.h

Index: src/compiler-dispatcher/optimizing-compile-dispatcher.h
diff --git a/src/compiler-dispatcher/optimizing-compile-dispatcher.h b/src/compiler-dispatcher/optimizing-compile-dispatcher.h
index 8c032ab3202c671a10b67b5f12b6955168fa4768..7e081615174236acf0b4046874ef0c1a4fb88e97 100644
--- a/src/compiler-dispatcher/optimizing-compile-dispatcher.h
+++ b/src/compiler-dispatcher/optimizing-compile-dispatcher.h
@@ -22,6 +22,8 @@ class SharedFunctionInfo;
 
 class OptimizingCompileDispatcher {
  public:
+  enum class BlockingBehavior { kBlock, kDontBlock };
+
   explicit OptimizingCompileDispatcher(Isolate* isolate)
       : isolate_(isolate),
         input_queue_capacity_(FLAG_concurrent_recompilation_queue_length),
@@ -38,7 +40,7 @@ class OptimizingCompileDispatcher {
 
   void Run();
   void Stop();
-  void Flush();
+  void Flush(BlockingBehavior blocking_behavior);
   void QueueForOptimization(CompilationJob* job);
   void Unblock();
   void InstallOptimizedFunctions();