Ignore similar_names pedantic clippy lint

    warning: binding's name is too similar to existing binding
       --> macro/src/expand.rs:615:13
        |
    615 |         let self_gt_token;
        |             ^^^^^^^^^^^^^
        |
    note: existing binding defined here
       --> macro/src/expand.rs:614:13
        |
    614 |         let self_lt_token;
        |             ^^^^^^^^^^^^^
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#similar_names
        = note: `-W clippy::similar-names` implied by `-W clippy::pedantic`
        = help: to override `-W clippy::pedantic` add `#[allow(clippy::similar_names)]`

    warning: binding's name is too similar to existing binding
       --> macro/src/expand.rs:647:17
        |
    647 |             let impl_gt_token = efn.generics.gt_token;
        |                 ^^^^^^^^^^^^^
        |
    note: existing binding defined here
       --> macro/src/expand.rs:646:17
        |
    646 |             let impl_lt_token = efn.generics.lt_token;
        |                 ^^^^^^^^^^^^^
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#similar_names

Author: dtolnay

macro/src/lib.rs

@@ -13,6 +13,7 @@
     clippy::nonminimal_bool,
     clippy::redundant_else,
     clippy::ref_option,
+    clippy::similar_names,
     clippy::single_match_else,
     clippy::struct_field_names,
     clippy::too_many_arguments,