rewrite silly-file-names to rmake

Author: Oneirical

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -162,7 +162,6 @@ run-make/sepcomp-cci-copies/Makefile
 run-make/sepcomp-inlining/Makefile
 run-make/sepcomp-separate/Makefile
 run-make/share-generics-dylib/Makefile
-run-make/silly-file-names/Makefile
 run-make/simd-ffi/Makefile
 run-make/split-debuginfo/Makefile
 run-make/stable-symbol-names/Makefile

tests/run-make/silly-file-names/Makefile

@@ -0,0 +1,24 @@
+// There used to be assert! checks in the compiler to error on encountering
+// files starting or ending with < or > respectively, as a preventive measure
+// against "fake" files like <anon>. However, this was not truly required,
+// as rustc has other checks to verify the veracity of a file. This test includes
+// some files with < and > in their names and prints out their output to stdout,
+// expecting no errors.
+// See https://github.com/rust-lang/rust/issues/73419
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+//@ ignore-windows
+// Reason: Windows refuses files with < and > in their names
+
+use run_make_support::{diff, fs_wrapper, run, rustc};
+
+fn main() {
+    fs_wrapper::create_file("<leading-lt");
+    fs_wrapper::write("<leading-lt", r#""comes from a file with a name that begins with <""#);
+    fs_wrapper::create_file("trailing-gt>");
+    fs_wrapper::write("trailing-gt>", r#""comes from a file with a name that ends with >""#);
+    rustc().input("silly-file-names.rs").output("silly-file-names").run();
+    let out = run("silly-file-names").stdout_utf8();
+    diff().expected_file("silly-file-names.run.stdout").actual_text("actual-stdout", out).run();
+}