Allow unicode in terminal names

lark/load_grammar.py

@@ -333,9 +333,7 @@ class PrepareAnonTerminals(Transformer_InPlace):
                     term_name = _TERMINAL_NAMES[value]
                 except KeyError:
                     if is_id_continue(value) and is_id_start(value[0]) and value.upper() not in self.term_set:
-                        with suppress(UnicodeEncodeError):
-                            value.upper().encode('ascii')  # Make sure we don't have unicode in our terminal names
-                            term_name = value.upper()
+                        term_name = value.upper()
 
                 if term_name in self.term_set:
                     term_name = None

tests/test_nearley/nearley

@@ -1 +1 @@
-Subproject commit cf8925f729bde741a3076c5856c0c0862bc7f5de
+Subproject commit a46b37471db486db0f6e1ce6a2934fb238346b44