Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index cd0684b57a37f89e1de418fa64a812b25efad097..80ac52f56104621efd5276993d32e48c18aa3d32 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -33,6 +33,7 @@
 #include "../include/v8-profiler.h"
 #include "../include/v8-testing.h"
 #include "bootstrapper.h"
+#include "code-events.h"
 #include "code-stubs.h"
 #include "compiler.h"
 #include "conversions-inl.h"
@@ -4257,6 +4258,11 @@ bool v8::V8::SetFunctionEntryHook(FunctionEntryHook entry_hook) {
 }
 
 
+void v8::V8::SetJitCodeEventHandler(JitCodeEventHandler event_handler) {
+  i::CodeEvents::set_handler(event_handler);
+}
+
+
 bool v8::V8::Dispose() {
   i::Isolate* isolate = i::Isolate::Current();
   if (!ApiCheck(isolate != NULL && isolate->IsDefaultIsolate(),