py: Add further checks for failed malloc in lexer init functions.
diff --git a/py/misc.h b/py/misc.h
index d828998..2f53dcb 100644
--- a/py/misc.h
+++ b/py/misc.h
@@ -54,6 +54,7 @@
#define m_new_maybe(type, num) ((type*)(m_malloc_maybe(sizeof(type) * (num))))
#define m_new0(type, num) ((type*)(m_malloc0(sizeof(type) * (num))))
#define m_new_obj(type) (m_new(type, 1))
+#define m_new_obj_maybe(type) (m_new_maybe(type, 1))
#define m_new_obj_var(obj_type, var_type, var_num) ((obj_type*)m_malloc(sizeof(obj_type) + sizeof(var_type) * (var_num)))
#define m_new_obj_var_maybe(obj_type, var_type, var_num) ((obj_type*)m_malloc_maybe(sizeof(obj_type) + sizeof(var_type) * (var_num)))
#if MICROPY_ENABLE_FINALISER