syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"this.cfg.push_assign(block,"}]}
source_snippet:                 this.cfg.push_assign(block, source_info, destination, rvalue);
context_before:                 let rvalue = Rvalue::Use(this.consume_by_copy_or_move(place));
context_after:                 block.unit()