Reland "Correctly propagate terminate exception in TryCall."

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index a07d656d75f923dd94c891a0d5d1fe53244ca789..d823f5836631cc76b7d4dbaf0911a94c6ecc4fc7 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1195,7 +1195,9 @@ MaybeHandle<Object> Factory::NewError(const char* maker, const char* message,
                           arraysize(argv),
                           argv,
                           &exception).ToHandle(&result)) {
-    return exception;
+    Handle<Object> exception_obj;
+    if (exception.ToHandle(&exception_obj)) return exception_obj;
+    return undefined_value();
   }
   return result;
 }
@@ -1222,7 +1224,9 @@ MaybeHandle<Object> Factory::NewError(const char* constructor,
                           arraysize(argv),
                           argv,
                           &exception).ToHandle(&result)) {
-    return exception;
+    Handle<Object> exception_obj;
+    if (exception.ToHandle(&exception_obj)) return exception_obj;
+    return undefined_value();
   }
   return result;
 }