use syntax::{ast, visit};
use syntax::ast::{Block, Item, FnDecl, NodeId, Arm, Pat, Stmt, Expr, Local};
use syntax::ast_util::stmt_id;
use syntax::{ast, visit};
use syntax::ast::{Block, Item, FnDecl, NodeId, Arm, Pat, Stmt, Expr, Local};
use syntax::ast_util::stmt_id;