Expand "recursive opaque type" diagnostic

Fix #70968, partially address #66523.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/librustc_trait_selection/traits/error_reporting/suggestions.rs b/src/librustc_trait_selection/traits/error_reporting/suggestions.rs
index 8796cfb5216..edff67929f6 100644
--- a/src/librustc_trait_selection/traits/error_reporting/suggestions.rs
+++ b/src/librustc_trait_selection/traits/error_reporting/suggestions.rs
@@ -1992,8 +1992,8 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
 /// Collect all the returned expressions within the input expression.
 /// Used to point at the return spans when we want to suggest some change to them.
 #[derive(Default)]
-struct ReturnsVisitor<'v> {
-    returns: Vec<&'v hir::Expr<'v>>,
+pub struct ReturnsVisitor<'v> {
+    pub returns: Vec<&'v hir::Expr<'v>>,
     in_block_tail: bool,
 }