Fix lifetime mismatch between LateContext and Ty

Author: tesuji

Diff for: clippy_lints/src/loops.rs

@@ -1245,7 +1245,12 @@ fn is_len_call(expr: &Expr, var: Name) -> bool {
     false
 }
 
-fn is_end_eq_array_len(cx: &LateContext<'_, '_>, end: &Expr, limits: ast::RangeLimits, indexed_ty: Ty<'_>) -> bool {
+fn is_end_eq_array_len<'tcx>(
+    cx: &LateContext<'_, 'tcx>,
+    end: &Expr,
+    limits: ast::RangeLimits,
+    indexed_ty: Ty<'tcx>,
+) -> bool {
     if_chain! {
         if let ExprKind::Lit(ref lit) = end.node;
         if let ast::LitKind::Int(end_int, _) = lit.node;
@@ -1982,7 +1987,7 @@ fn is_ref_iterable_type(cx: &LateContext<'_, '_>, e: &Expr) -> bool {
     match_type(cx, ty, &paths::BTREESET)
 }
 
-fn is_iterable_array(ty: Ty<'_>, cx: &LateContext<'_, '_>) -> bool {
+fn is_iterable_array<'tcx>(ty: Ty<'tcx>, cx: &LateContext<'_, 'tcx>) -> bool {
     // IntoIterator is currently only implemented for array sizes <= 32 in rustc
     match ty.sty {
         ty::Array(_, n) => (0..=32).contains(&n.assert_usize(cx.tcx).expect("array length")),

Diff for: clippy_lints/src/methods/mod.rs

@@ -1773,7 +1773,7 @@ fn derefs_to_slice<'a, 'tcx>(
     expr: &'tcx hir::Expr,
     ty: Ty<'tcx>,
 ) -> Option<&'tcx hir::Expr> {
-    fn may_slice(cx: &LateContext<'_, '_>, ty: Ty<'_>) -> bool {
+    fn may_slice<'a>(cx: &LateContext<'_, 'a>, ty: Ty<'a>) -> bool {
         match ty.sty {
             ty::Slice(_) => true,
             ty::Adt(def, _) if def.is_box() => may_slice(cx, ty.boxed_ty()),