Migrate run-make/rustdoc-with-out-dir-option to new rmake.rs

Author: GuillaumeGomez

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -243,7 +243,6 @@ run-make/rustdoc-scrape-examples-remap/Makefile
 run-make/rustdoc-scrape-examples-test/Makefile
 run-make/rustdoc-scrape-examples-whitespace/Makefile
 run-make/rustdoc-verify-output-files/Makefile
-run-make/rustdoc-with-out-dir-option/Makefile
 run-make/rustdoc-with-output-option/Makefile
 run-make/rustdoc-with-short-out-dir-option/Makefile
 run-make/sanitizer-cdylib-link/Makefile

tests/run-make/rustdoc-with-out-dir-option/Makefile

@@ -0,0 +1,7 @@
+use run_make_support::{htmldocck, rustdoc, tmp_dir};
+
+fn main() {
+    let out_dir = tmp_dir().join("rustdoc");
+    rustdoc().input("src/lib.rs").crate_name("foobar").crate_type("lib").output(&out_dir).run();
+    htmldocck().arg(out_dir).arg("src/lib.rs").status().unwrap().success();
+}