use std::hash;
use std::ascii::AsciiExt;
use syntax::codemap::Span;
-use rustc_front::visit::FnKind;
+use rustc_front::intravisit::FnKind;
use syntax::visit as ast_visit;
use syntax::ast;
use rustc_front::hir;
pub type LateLintPassObject = Box<LateLintPass + 'static>;
/// Identifies a lint known to the compiler.
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Debug)]
pub struct LintId {
// Identity is based on pointer equality of this field.
lint: &'static Lint,