syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"sess.opts.unstable_opts.mir_emit_retag"}]}
source_snippet:         sess.opts.unstable_opts.mir_emit_retag
context_before:     fn is_enabled(&self, sess: &rustc_session::Session) -> bool {
context_after:     }