syntax_data: {"ast_node_type":"variable","tokens":[{"end":33,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let mut targets =
context_before:                 let destination_block = this.cfg.start_new_block();
context_after:                     if asm_macro.diverges(options) { vec![] } else { vec![destination_block] };