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

runtime/vm/object_test.cc

Index: runtime/vm/object_test.cc
diff --git a/runtime/vm/object_test.cc b/runtime/vm/object_test.cc
index fb4b621d61096674bfa36cd4d717a7a71813f2a5..0e7ba6c14611c07573440007dd79921b541161ab 100644
--- a/runtime/vm/object_test.cc
+++ b/runtime/vm/object_test.cc
@@ -2799,10 +2799,14 @@ ISOLATE_UNIT_TEST_CASE(ExceptionHandlers) {
   exception_handlers ^= ExceptionHandlers::New(kNumEntries);
   const bool kNeedsStackTrace = true;
   const bool kNoStackTrace = false;
-  exception_handlers.SetHandlerInfo(0, -1, 20u, kNeedsStackTrace, false);
-  exception_handlers.SetHandlerInfo(1, 0, 30u, kNeedsStackTrace, false);
-  exception_handlers.SetHandlerInfo(2, -1, 40u, kNoStackTrace, true);
-  exception_handlers.SetHandlerInfo(3, 1, 150u, kNoStackTrace, true);
+  exception_handlers.SetHandlerInfo(0, -1, 20u, kNeedsStackTrace, false,
+                                    TokenPosition::kNoSource, true);
+  exception_handlers.SetHandlerInfo(1, 0, 30u, kNeedsStackTrace, false,
+                                    TokenPosition::kNoSource, true);
+  exception_handlers.SetHandlerInfo(2, -1, 40u, kNoStackTrace, true,
+                                    TokenPosition::kNoSource, true);
+  exception_handlers.SetHandlerInfo(3, 1, 150u, kNoStackTrace, true,
+                                    TokenPosition::kNoSource, true);
 
   extern void GenerateIncrement(Assembler * assembler);
   Assembler _assembler_;