Rename last case of UseLast to GetLastWithLen

Author: HarrisonMc555

clippy_lints/src/get_last_with_len.rs

@@ -42,9 +42,9 @@ declare_clippy_lint! {
     "Using `x.get(x.len() - 1)` when `x.last()` is correct and simpler"
 }
 
-declare_lint_pass!(UseLast => [GET_LAST_WITH_LEN]);
+declare_lint_pass!(GetLastWithLen => [GET_LAST_WITH_LEN]);
 
-impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UseLast {
+impl<'a, 'tcx> LateLintPass<'a, 'tcx> for GetLastWithLen {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
         if_chain! {
             // Is a method call

clippy_lints/src/lib.rs

@@ -492,6 +492,7 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
     reg.register_late_lint_pass(box types::CharLitAsU8);
     reg.register_late_lint_pass(box vec::UselessVec);
     reg.register_late_lint_pass(box drop_bounds::DropBounds);
+    reg.register_late_lint_pass(box get_last_with_len::GetLastWithLen);
     reg.register_late_lint_pass(box drop_forget_ref::DropForgetRef);
     reg.register_late_lint_pass(box empty_enum::EmptyEnum);
     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);