binary operator overload type inference: add test mark

1 files changed, 3 insertions, 0 deletions

diff --git a/crates/hir_ty/src/infer/expr.rs b/crates/hir_ty/src/infer/expr.rs
index 8cc0d56d3..8ac4cf89a 100644
--- a/crates/hir_ty/src/infer/expr.rs
+++ b/crates/hir_ty/src/infer/expr.rs
@@ -12,6 +12,7 @@ use hir_def::{
 };
 use hir_expand::name::{name, Name};
 use syntax::ast::RangeOp;
+use test_utils::mark;
 
 use crate::{
     autoderef, method_resolution, op,
@@ -537,6 +538,8 @@ impl<'a> InferenceContext<'a> {
                     let ret = op::binary_op_return_ty(*op, lhs_ty.clone(), rhs_ty.clone());
 
                     if ret == Ty::Unknown {
+                        mark::hit!(infer_expr_inner_binary_operator_overload);
+
                         self.resolve_associated_type_with_params(
                             lhs_ty,
                             self.resolve_binary_op_output(op),