Fix an invalid suggestion in needless_collect test

Author: giraffate

clippy_lints/src/loops.rs

@@ -2920,7 +2920,14 @@ impl IterFunction {
             IterFunctionKind::IntoIter => String::new(),
             IterFunctionKind::Len => String::from(".count()"),
             IterFunctionKind::IsEmpty => String::from(".next().is_none()"),
-            IterFunctionKind::Contains(span) => format!(".any(|x| x == {})", snippet(cx, *span, "..")),
+            IterFunctionKind::Contains(span) => {
+                let s = snippet(cx, *span, "..");
+                if let Some(stripped) = s.strip_prefix('&') {
+                    format!(".any(|x| x == {})", stripped)
+                } else {
+                    format!(".any(|x| x == *{})", s)
+                }
+            },
         }
     }
     fn get_suggestion_text(&self) -> &'static str {

tests/ui/needless_collect_indirect.stderr

@@ -48,7 +48,7 @@ LL | |     indirect_contains.contains(&&5);
 help: Check if the original Iterator contains an element instead of collecting then checking
    |
 LL |     
-LL |     sample.iter().any(|x| x == &&5);
+LL |     sample.iter().any(|x| x == &5);
    |
 
 error: aborting due to 4 previous errors