Track the 'awaiter return' call stack use it to detect uncaught exceptions in async functions

runtime/vm/code_descriptors.cc

Index: runtime/vm/code_descriptors.cc
diff --git a/runtime/vm/code_descriptors.cc b/runtime/vm/code_descriptors.cc
index 1eb2092a34609fc291a3ab2547e7c339caa4b343..91d86b78217256a8f44e9ff1fef29576fe288c9c 100644
--- a/runtime/vm/code_descriptors.cc
+++ b/runtime/vm/code_descriptors.cc
@@ -102,12 +102,14 @@ RawExceptionHandlers* ExceptionHandlerList::FinalizeExceptionHandlers(
       ASSERT((list_[i].outer_try_index == -1) &&
              (list_[i].pc_offset == ExceptionHandlers::kInvalidPcOffset));
       handlers.SetHandlerInfo(i, list_[i].outer_try_index, list_[i].pc_offset,
-                              list_[i].needs_stacktrace, has_catch_all);
+                              list_[i].needs_stacktrace, has_catch_all,
+                              list_[i].token_pos, list_[i].is_generated);
       handlers.SetHandledTypes(i, Array::empty_array());
     } else {
       const bool has_catch_all = ContainsDynamic(*list_[i].handler_types);
       handlers.SetHandlerInfo(i, list_[i].outer_try_index, list_[i].pc_offset,
-                              list_[i].needs_stacktrace, has_catch_all);
+                              list_[i].needs_stacktrace, has_catch_all,
+                              list_[i].token_pos, list_[i].is_generated);
       handlers.SetHandledTypes(i, *list_[i].handler_types);
     }
   }