syntax_data: {"ast_node_type":"other","tokens":[{"end":29,"kind":"keyword","start":0,"text":"Ok((thir,"}]}
source_snippet:         Ok((thir, expr)) => {
context_before:         Err(error_reported) => construct_error(tcx, def, error_reported),
context_after:             let build_mir = |thir: &Thir<'tcx>| match thir.body_type {