Improve stack traces for async functions

src/contexts.h

Index: src/contexts.h
diff --git a/src/contexts.h b/src/contexts.h
index 520a8c80cdb57b16c9c94ae6f579ddf683b134a4..1f2f0328aad66481bbea65ae105616b6be3cbe78 100644
--- a/src/contexts.h
+++ b/src/contexts.h
@@ -72,6 +72,10 @@ enum ContextLookupFlags {
     async_function_await_caught)                                          \
   V(ASYNC_FUNCTION_AWAIT_UNCAUGHT_INDEX, JSFunction,                      \
     async_function_await_uncaught)                                        \
+  V(ASYNC_FUNCTION_PROMISE_CREATE_INDEX, JSFunction,                      \
+    async_function_promise_create)                                        \
+  V(ASYNC_FUNCTION_PROMISE_RELEASE_INDEX, JSFunction,                     \
+    async_function_promise_release)                                       \
   V(DERIVED_GET_TRAP_INDEX, JSFunction, derived_get_trap)                 \
   V(ERROR_FUNCTION_INDEX, JSFunction, error_function)                     \
   V(ERROR_TO_STRING, JSFunction, error_to_string)                         \