Ignore new_without_default clippy lint

    error: you should consider adding a `Default` implementation for `TokenStream`
      --> src/fallback.rs:55:5
       |
    55 | /     pub fn new() -> Self {
    56 | |         TokenStream {
    57 | |             inner: RcVecBuilder::new().build(),
    58 | |         }
    59 | |     }
       | |_____^
       |
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
       = note: `-D clippy::new-without-default` implied by `-D clippy::all`
    help: try adding this
       |
    54 + impl Default for TokenStream {
    55 +     fn default() -> Self {
    56 +         Self::new()
    57 +     }
    58 + }
       |

    error: you should consider adding a `Default` implementation for `TokenStream`
      --> src/wrapper.rs:74:5
       |
    74 | /     pub fn new() -> Self {
    75 | |         if inside_proc_macro() {
    76 | |             TokenStream::Compiler(DeferredTokenStream::new(proc_macro::TokenStream::new()))
    77 | |         } else {
    78 | |             TokenStream::Fallback(fallback::TokenStream::new())
    79 | |         }
    80 | |     }
       | |_____^
       |
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
    help: try adding this
       |
    73 + impl Default for TokenStream {
    74 +     fn default() -> Self {
    75 +         Self::new()
    76 +     }
    77 + }
       |

Author: dtolnay

src/lib.rs

@@ -102,6 +102,7 @@
     clippy::manual_assert,
     clippy::must_use_candidate,
     clippy::needless_doctest_main,
+    clippy::new_without_default,
     clippy::return_self_not_must_use,
     clippy::shadow_unrelated,
     clippy::trivially_copy_pass_by_ref,