Add run-rustfix to map_clone test

Author: detrumi

tests/ui/map_clone.fixed

@@ -0,0 +1,11 @@
+// run-rustfix
+#![warn(clippy::all, clippy::pedantic)]
+#![allow(clippy::iter_cloned_collect)]
+#![allow(clippy::missing_docs_in_private_items)]
+
+fn main() {
+    let _: Vec<i8> = vec![5_i8; 6].iter().cloned().collect();
+    let _: Vec<String> = vec![String::new()].iter().cloned().collect();
+    let _: Vec<u32> = vec![42, 43].iter().cloned().collect();
+    let _: Option<u64> = Some(Box::new(16)).map(|b| *b);
+}

tests/ui/map_clone.rs

@@ -1,4 +1,6 @@
+// run-rustfix
 #![warn(clippy::all, clippy::pedantic)]
+#![allow(clippy::iter_cloned_collect)]
 #![allow(clippy::missing_docs_in_private_items)]
 
 fn main() {

tests/ui/map_clone.stderr

@@ -1,19 +1,19 @@
 error: You are using an explicit closure for cloning elements
-  --> $DIR/map_clone.rs:5:22
+  --> $DIR/map_clone.rs:7:22
    |
 LL |     let _: Vec<i8> = vec![5_i8; 6].iter().map(|x| *x).collect();
    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `vec![5_i8; 6].iter().cloned()`
    |
    = note: `-D clippy::map-clone` implied by `-D warnings`
 
 error: You are using an explicit closure for cloning elements
-  --> $DIR/map_clone.rs:6:26
+  --> $DIR/map_clone.rs:8:26
    |
 LL |     let _: Vec<String> = vec![String::new()].iter().map(|x| x.clone()).collect();
    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `vec![String::new()].iter().cloned()`
 
 error: You are using an explicit closure for cloning elements
-  --> $DIR/map_clone.rs:7:23
+  --> $DIR/map_clone.rs:9:23
    |
 LL |     let _: Vec<u32> = vec![42, 43].iter().map(|&x| x).collect();
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `vec![42, 43].iter().cloned()`