Rollup merge of rust-lang#64998 - spastorino:filter-rls-on-tidy, r=petrochenkov

Filter out RLS output directories on tidy runs

Closes rust-lang#64957

r? @petrochenkov

Author: Manishearth

src/tools/tidy/src/lib.rs

@@ -53,6 +53,9 @@ fn filter_dirs(path: &Path) -> bool {
         "src/tools/rls",
         "src/tools/rust-installer",
         "src/tools/rustfmt",
+
+        // Filter RLS output directories
+        "target/rls",
     ];
     skip.iter().any(|p| path.ends_with(p))
 }