Mark await expressions as caught or uncaught

src/ast/ast-numbering.cc

Index: src/ast/ast-numbering.cc
diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index d0101828d6897f99c91e069024460c4aae10ebf6..6c37128941a9fcd6b2f76e00908469d7b6fd0be2 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -249,6 +249,12 @@ void AstNumberingVisitor::VisitCallRuntime(CallRuntime* node) {
   IncrementNodeCount();
   node->set_base_id(ReserveIdRange(CallRuntime::num_ids()));
   VisitArguments(node->arguments());
+  // Indicate the catch prediction to the running async program
+  if (node->is_jsruntime() &&
+      node->context_index() == Context::ASYNC_FUNCTION_AWAIT_CAUGHT_INDEX &&
+      catch_prediction_ == HandlerTable::ASYNC_AWAIT) {
+    node->set_context_index(Context::ASYNC_FUNCTION_AWAIT_UNCAUGHT_INDEX);
+  }
 }