syntax_data: {"ast_node_type":"other","tokens":[{"end":16,"kind":"keyword","start":0,"text":"tcx,"}]}
source_snippet:             tcx,
context_before:         can_unwind: fn_can_unwind(
context_after:             // Since `#[rustc_nounwind]` can change unwinding, we cannot infer unwinding by `fn_def_id` for a virtual call.