Add debug info

Author: GuillaumeGomez

tests/run-make/link-framework/rmake.rs

@@ -2,13 +2,14 @@
 
 //@ only-apple
 
-use run_make_support::{cmd, rustc};
+use run_make_support::{cmd, cwd, rustc, shallow_find_files};
 
 fn main() {
     rustc().input("dep-link-framework.rs").run();
     rustc().input("dep-link-weak-framework.rs").run();
 
     rustc().input("empty.rs").run();
+    eprintln!("---> {:?}", shallow_find_files(cwd(), |_| true));
     cmd("otool").arg("-L").arg("no-link").run().assert_stdout_not_contains("CoreFoundation");
 
     rustc().input("link-framework.rs").run();