Static clippy_lints::len_zero::LEN_ZERO

pub static LEN_ZERO: &'static Lint = &::rustc::lint::Lint{name: "LEN_ZERO",
                     default_level: ::rustc::lint::Warn,
                     desc:
                         "checking `.len() == 0` or `.len() > 0` (or similar) when `.is_empty()` could be used instead",}