vm: Implement "with" statement (SETUP_WITH and WITH_CLEANUP bytecodes).
diff --git a/py/qstrdefs.h b/py/qstrdefs.h
index 3be6295..4570439 100644
--- a/py/qstrdefs.h
+++ b/py/qstrdefs.h
@@ -16,6 +16,8 @@
 Q(__repl_print__)
 
 Q(__bool__)
+Q(__enter__)
+Q(__exit__)
 Q(__len__)
 Q(__iter__)
 Q(__getitem__)