syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"debug_assert_ne!(krate,"}]}
source_snippet:     debug_assert_ne!(krate, LOCAL_CRATE);
context_before:     // This function is used to decode metadata, so it cannot decode information about LOCAL_CRATE.
context_after:     let expn_id = ExpnId { krate, local_id: index };