syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"bad_ref_pats:"}]}
source_snippet:                     bad_ref_pats: self.info.bad_ref_pats,
context_before:                     bad_modifiers: self.info.bad_modifiers,
context_after:                     is_hard_error,