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

src/test/ui/check-static-recursion-foreign.rs

@@ -0,0 +1,26 @@
+// run-pass
+
+#![allow(dead_code)]
+// Static recursion check shouldn't fail when given a foreign item (#18279)
+
+// aux-build:check_static_recursion_foreign_helper.rs
+// ignore-wasm32-bare no libc to test ffi with
+
+// pretty-expanded FIXME #23616
+
+#![feature(rustc_private)]
+
+extern crate check_static_recursion_foreign_helper;
+extern crate libc;
+
+use libc::c_int;
+
+#[link_name = "check_static_recursion_foreign_helper"]
+extern "C" {
+    #[allow(dead_code)]
+    static test_static: c_int;
+}
+
+static B: &'static c_int = unsafe { &test_static };
+
+pub fn main() {}