syntax_data: {"ast_node_type":"variable","tokens":[{"end":89,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let _: BlockAnd<()> = builder.in_scope(call_site_s, LintLevel::Inherited, |builder| {
context_before:     let call_site_s = (call_site_scope, source_info);
context_after:         let arg_scope_s = (arg_scope, source_info);