Migrate weird-output-filenames to rmake

Author: Rejyr

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -200,5 +200,4 @@ run-make/use-suggestions-rust-2018/Makefile
 run-make/used-cdylib-macos/Makefile
 run-make/wasm-exceptions-nostd/Makefile
 run-make/wasm-override-linker/Makefile
-run-make/weird-output-filenames/Makefile
 run-make/x86_64-fortanix-unknown-sgx-lvi/Makefile

tests/run-make/weird-output-filenames/Makefile

@@ -0,0 +1,19 @@
+use run_make_support::fs_wrapper::copy;
+use run_make_support::regex::Regex;
+use run_make_support::{cwd, rustc};
+
+fn main() {
+    let invalid_characters = [".foo.rs", ".foo.bar", "+foo+bar.rs"];
+    let re = Regex::new(r"invalid character.*in crate name:").unwrap();
+    for f in invalid_characters {
+        copy("foo.rs", f);
+        let stderr = rustc().input(f).run_fail().stderr_utf8();
+        assert!(re.is_match(&stderr));
+    }
+
+    copy("foo.rs", "-foo.rs");
+    rustc()
+        .input(cwd().join("-foo.rs"))
+        .run_fail()
+        .assert_stderr_contains("crate names cannot start with a `-`");
+}