Add test case for references bindings

Author: ThibsG

tests/ui/search_is_some_fixable_none.fixed

@@ -174,4 +174,9 @@ mod issue7392 {
         let vfoo = vec![Foo { bar: 1 }];
         let _ = !vfoo.iter().any(|v| v.by_ref(&v.bar));
     }
+
+    fn ref_bindings() {
+        let _ = ![&(&1, 2), &(&3, 4), &(&5, 4)].iter().any(|(&x, y)| x == *y);
+        let _ = ![&(&1, 2), &(&3, 4), &(&5, 4)].iter().any(|(&x, y)| x == *y);
+    }
 }

tests/ui/search_is_some_fixable_none.rs

@@ -180,4 +180,9 @@ mod issue7392 {
         let vfoo = vec![Foo { bar: 1 }];
         let _ = vfoo.iter().find(|v| v.by_ref(&v.bar)).is_none();
     }
+
+    fn ref_bindings() {
+        let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|(&x, y)| x == *y).is_none();
+        let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|&(&x, y)| x == *y).is_none();
+    }
 }

tests/ui/search_is_some_fixable_none.stderr

@@ -227,5 +227,17 @@ error: called `is_none()` after searching an `Iterator` with `find`
 LL |         let _ = vfoo.iter().find(|v| v.by_ref(&v.bar)).is_none();
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!vfoo.iter().any(|v| v.by_ref(&v.bar))`
 
-error: aborting due to 34 previous errors
+error: called `is_none()` after searching an `Iterator` with `find`
+  --> $DIR/search_is_some_fixable_none.rs:185:17
+   |
+LL |         let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|(&x, y)| x == *y).is_none();
+   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `![&(&1, 2), &(&3, 4), &(&5, 4)].iter().any(|(&x, y)| x == *y)`
+
+error: called `is_none()` after searching an `Iterator` with `find`
+  --> $DIR/search_is_some_fixable_none.rs:186:17
+   |
+LL |         let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|&(&x, y)| x == *y).is_none();
+   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `![&(&1, 2), &(&3, 4), &(&5, 4)].iter().any(|(&x, y)| x == *y)`
+
+error: aborting due to 36 previous errors
 

tests/ui/search_is_some_fixable_some.fixed

@@ -176,4 +176,9 @@ mod issue7392 {
         let vfoo = vec![Foo { bar: 1 }];
         let _ = vfoo.iter().any(|v| v.by_ref(&v.bar));
     }
+
+    fn ref_bindings() {
+        let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().any(|(&x, y)| x == *y);
+        let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().any(|(&x, y)| x == *y);
+    }
 }

tests/ui/search_is_some_fixable_some.rs

@@ -179,4 +179,9 @@ mod issue7392 {
         let vfoo = vec![Foo { bar: 1 }];
         let _ = vfoo.iter().find(|v| v.by_ref(&v.bar)).is_some();
     }
+
+    fn ref_bindings() {
+        let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|(&x, y)| x == *y).is_some();
+        let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|&(&x, y)| x == *y).is_some();
+    }
 }

tests/ui/search_is_some_fixable_some.stderr

@@ -210,5 +210,17 @@ error: called `is_some()` after searching an `Iterator` with `find`
 LL |         let _ = vfoo.iter().find(|v| v.by_ref(&v.bar)).is_some();
    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|v| v.by_ref(&v.bar))`
 
-error: aborting due to 34 previous errors
+error: called `is_some()` after searching an `Iterator` with `find`
+  --> $DIR/search_is_some_fixable_some.rs:184:55
+   |
+LL |         let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|(&x, y)| x == *y).is_some();
+   |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|(&x, y)| x == *y)`
+
+error: called `is_some()` after searching an `Iterator` with `find`
+  --> $DIR/search_is_some_fixable_some.rs:185:55
+   |
+LL |         let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|&(&x, y)| x == *y).is_some();
+   |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|(&x, y)| x == *y)`
+
+error: aborting due to 36 previous errors