syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"FutureCompatOverlapErrorKind,"}]}
source_snippet:     FutureCompatOverlapErrorKind, ObligationCause, ObligationCtxt, coherence,
context_before: use crate::traits::{
context_after:     predicates_for_generics,