tests: Move run-pass tests without naming conflicts to ui

src/test/ui/array-slice-vec/arr_cycle.rs

@@ -0,0 +1,31 @@
+// run-pass
+
+use std::cell::Cell;
+
+#[derive(Debug)]
+struct B<'a> {
+    a: [Cell<Option<&'a B<'a>>>; 2]
+}
+
+impl<'a> B<'a> {
+    fn new() -> B<'a> {
+        B { a: [Cell::new(None), Cell::new(None)] }
+    }
+}
+
+fn f() {
+    let (b1, b2, b3);
+    b1 = B::new();
+    b2 = B::new();
+    b3 = B::new();
+    b1.a[0].set(Some(&b2));
+    b1.a[1].set(Some(&b3));
+    b2.a[0].set(Some(&b2));
+    b2.a[1].set(Some(&b3));
+    b3.a[0].set(Some(&b1));
+    b3.a[1].set(Some(&b2));
+}
+
+fn main() {
+    f();
+}