[promises] Move PromiseResolveThenableJob to c++

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index 5a5888995533a64f6978831e431c7fc2cb668e58..925481cd3a28c2114b20526737fd96256a255e7c 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -900,6 +900,16 @@ void Box::BoxVerify() {
   value()->ObjectVerify();
 }
 
+void PromiseContainer::PromiseContainerVerify() {
+  CHECK(IsPromiseContainer());
+  promise()->ObjectVerify();
+  thenable()->ObjectVerify();
+  then()->ObjectVerify();
+  resolve()->ObjectVerify();
+  reject()->ObjectVerify();
+  before_debug_event()->ObjectVerify();
+  after_debug_event()->ObjectVerify();
+}
 
 void PrototypeInfo::PrototypeInfoVerify() {
   CHECK(IsPrototypeInfo());