[promises] Move PromiseReactionJob to c++

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index 75320677c557e18bce4085eef8e3793614623ce0..886e8cac9c65c372e39e5e0f5f67d3c953d9a6e1 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -922,6 +922,15 @@ void PromiseContainer::PromiseContainerVerify() {
   after_debug_event()->ObjectVerify();
 }
 
+void PromiseHandleInfo::PromiseHandleInfoVerify() {
+  CHECK(IsPromiseHandleInfo());
+  value()->ObjectVerify();
+  tasks()->ObjectVerify();
+  deferreds()->ObjectVerify();
+  before_debug_event()->ObjectVerify();
+  after_debug_event()->ObjectVerify();
+}
+
 void JSModuleNamespace::JSModuleNamespaceVerify() {
   CHECK(IsJSModuleNamespace());
   module()->ObjectVerify();