Add test

tests/ui/async-await/missed-capture-issue-107414.rs

@@ -0,0 +1,24 @@
+// check-pass
+// edition:2018
+
+fn main() {}
+
+struct StructA {}
+struct StructB {}
+
+impl StructA {
+    fn fn_taking_struct_b(&self, struct_b: &StructB) -> bool {
+        true
+    }
+}
+
+async fn get_struct_a_async() -> StructA {
+    StructA {}
+}
+
+async fn ice() {
+    match Some(StructB {}) {
+        Some(struct_b) if get_struct_a_async().await.fn_taking_struct_b(&struct_b) => {}
+        _ => {}
+    }
+}