syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"dcx.emit_fatal(LoopMatchBadRhs"}]}
source_snippet:                         dcx.emit_fatal(LoopMatchBadRhs { span: rhs_expr.span })
context_before:                     let hir::ExprKind::Block(block_body, _) = rhs_expr.kind else {
context_after:                     };