rustc::lint::builtin::TRIVIAL_NUMERIC_CASTS

pub static TRIVIAL_NUMERIC_CASTS: &'static Lint = &::rustc::lint::Lint{name: "TRIVIAL_NUMERIC_CASTS",
                     default_level: ::rustc::lint::Allow,
                     desc:
                         "detects trivial casts of numeric types which could be removed",}

Unstable (rustc_private)