Fix problems from merge, if_chain! isn't working

Author: HarrisonMc555

CHANGELOG.md

@@ -1048,6 +1048,7 @@ All notable changes to this project will be documented in this file.
 [`unused_label`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
 [`unused_unit`]: https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
 [`use_debug`]: https://rust-lang.github.io/rust-clippy/master/index.html#use_debug
+[`use_last`]: https://rust-lang.github.io/rust-clippy/master/index.html#use_last
 [`use_self`]: https://rust-lang.github.io/rust-clippy/master/index.html#use_self
 [`used_underscore_binding`]: https://rust-lang.github.io/rust-clippy/master/index.html#used_underscore_binding
 [`useless_asref`]: https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref

clippy_lints/src/lib.rs

@@ -243,6 +243,7 @@ pub mod unsafe_removed_from_name;
 pub mod unused_io_amount;
 pub mod unused_label;
 pub mod unwrap;
+pub mod use_last;
 pub mod use_self;
 pub mod vec;
 pub mod wildcard_dependencies;
@@ -845,6 +846,7 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
         unused_io_amount::UNUSED_IO_AMOUNT,
         unused_label::UNUSED_LABEL,
+        use_last::USE_LAST,
         vec::USELESS_VEC,
         write::PRINTLN_EMPTY_STRING,
         write::PRINT_LITERAL,
@@ -1008,6 +1010,7 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
         types::UNNECESSARY_CAST,
         types::VEC_BOX,
         unused_label::UNUSED_LABEL,
+        use_last::USE_LAST,
         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
     ]);