objgenerator: close(): Throw instance of GeneratorExit (not type).

To comply with Python semantics and allow use of mp_obj_is_subclass_fast()
for exception matching.

1 files changed, 1 insertions, 0 deletions

diff --git a/py/obj.h b/py/obj.h
index af38253c5..500ffbdc0 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -231,6 +231,7 @@ extern const mp_obj_t mp_const_false;
 extern const mp_obj_t mp_const_true;
 extern const mp_obj_t mp_const_empty_tuple;
 extern const mp_obj_t mp_const_ellipsis;
+extern const mp_obj_t mp_const_GeneratorExit;
 
 // General API for objects