Resolve clippy::redundant_field_names

    error: redundant field names in struct initialization
       --> src/helpers.rs:199:34
        |
    199 |         let place = mir::Place { local: local, projection: List::empty() };
        |                                  ^^^^^^^^^^^^ help: replace it with: `local`
        |
        = note: `-D clippy::redundant-field-names` implied by `-D clippy::all`
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names

    error: redundant field names in struct initialization
       --> src/thread.rs:238:13
        |
    238 |             threads: threads,
        |             ^^^^^^^^^^^^^^^^ help: replace it with: `threads`
        |
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names

Author: dtolnay

src/helpers.rs

@@ -196,7 +196,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
     /// Get the `Place` for a local
     fn local_place(&mut self, local: mir::Local) -> InterpResult<'tcx, PlaceTy<'tcx, Tag>> {
         let this = self.eval_context_mut();
-        let place = mir::Place { local: local, projection: List::empty() };
+        let place = mir::Place { local, projection: List::empty() };
         this.eval_place(place)
     }
 

src/lib.rs

@@ -20,7 +20,6 @@
     clippy::manual_map,
     clippy::needless_lifetimes,
     clippy::new_without_default,
-    clippy::redundant_field_names,
     clippy::single_char_add_str,
     clippy::single_char_pattern,
     clippy::single_match,

src/thread.rs

@@ -235,7 +235,7 @@ impl<'mir, 'tcx> Default for ThreadManager<'mir, 'tcx> {
         threads.push(main_thread);
         Self {
             active_thread: ThreadId::new(0),
-            threads: threads,
+            threads,
             sync: SynchronizationState::default(),
             thread_local_alloc_ids: Default::default(),
             yield_active_thread: false,