syntax_data: {"ast_node_type":"other","tokens":[{"end":19,"kind":"keyword","start":0,"text":"});"}]}
source_snippet:                 });
context_before:                     bug!("expected to get raw bytes from valtree {:?} for type {:}", valtree, ct_ty)
context_after:                 let s = std::str::from_utf8(slice).expect("non utf8 str from MIR interpreter");