syntax_data: {"ast_node_type":"variable","tokens":[{"end":41,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                         let stmt = Stmt {
context_before:                     hir::StmtKind::Expr(expr) | hir::StmtKind::Semi(expr) => {
context_after:                             kind: StmtKind::Expr {