Run Crankshaft on a separate thread.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index cb87c71fb1193c38953701a88ffac4e1f465d9cd..2d0936e973d100497fd61fc8dc9da92b159089d1 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -31,6 +31,7 @@
 #include "arguments.h"
 #include "bootstrapper.h"
 #include "codegen.h"
+#include "crankshaft-thread.h"
 #include "debug.h"
 #include "deoptimizer.h"
 #include "date.h"
@@ -7305,6 +7306,14 @@ void JSFunction::JSFunctionIterateBody(int object_size, ObjectVisitor* v) {
 }
 
 
+void JSFunction::CompileConcurrently() {
+  ASSERT(FLAG_concurrent_crankshaft);
+  i::Handle<JSFunction> handle(reinterpret_cast<JSFunction **>(
+      GetIsolate()->global_handles()->Create(this).location()));
+  CrankshaftThread::AddJob(GetIsolate(), handle);
+}
+
+
 void JSFunction::MarkForLazyRecompilation() {
   ASSERT(is_compiled() && !IsOptimized());
   ASSERT(shared()->allows_lazy_compilation() ||