Normalize some directories

Author: oli-obk

tests/compile-test.rs

@@ -95,7 +95,20 @@ fn run_internal_tests() {
 }
 
 fn run_ui_toml() {
-    let config = base_config("ui-toml");
+    let mut config = base_config("ui-toml");
+
+    config.stderr_filter(
+        &std::path::Path::new(file!())
+            .parent()
+            .unwrap()
+            .canonicalize()
+            .unwrap()
+            .parent()
+            .unwrap()
+            .display()
+            .to_string(),
+        "$$DIR",
+    );
 
     ui_test::run_tests(config).unwrap();
 }