syntax_data: {"ast_node_type":"variable","tokens":[{"end":84,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let box_ = Rvalue::ShallowInitBox(Operand::Move(storage), value_ty);
context_before:                 // Transmute `*mut u8` to the box (thus far, uninitialized):
context_after:                 this.cfg.push_assign(block, source_info, Place::from(result), box_);