Rollup merge of rust-lang#126015 - GuillaumeGomez:migrate-run-make-symlinked-rlib, r=jieyouxu

Migrate `run-make/symlinked-rlib` to `rmake.rs`

Part of rust-lang#121876.

r? ``@jieyouxu``

Author: GuillaumeGomez

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -235,7 +235,6 @@ run-make/symbol-visibility/Makefile
 run-make/symbols-include-type-name/Makefile
 run-make/symlinked-extern/Makefile
 run-make/symlinked-libraries/Makefile
-run-make/symlinked-rlib/Makefile
 run-make/sysroot-crates-are-unstable/Makefile
 run-make/target-cpu-native/Makefile
 run-make/target-specs/Makefile

tests/run-make/symlinked-rlib/Makefile

@@ -0,0 +1,20 @@
+//@ ignore-cross-compile
+// `ln` is actually `cp` on msys.
+//@ ignore-windows
+
+use run_make_support::{rustc, tmp_dir};
+use std::process::Command;
+
+fn main() {
+    let out = tmp_dir().join("foo.xxx");
+
+    rustc().input("foo.rs").crate_type("rlib").output(&out).run();
+    let output = Command::new("ln")
+        .arg("-nsf")
+        .arg(out)
+        .arg(tmp_dir().join("libfoo.rlib"))
+        .output()
+        .unwrap();
+    assert!(output.status.success());
+    rustc().input("bar.rs").library_search_path(tmp_dir()).run();
+}