syntax_data: {"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"this.visit_primary_bindings(pattern,"}]}
source_snippet:                         this.visit_primary_bindings(pattern, &mut |this, node, span| {
context_before:                         debug!("ast_block_stmts: pattern={:?}", pattern);
context_after:                             this.storage_live_binding(