rewrite linkage-attr-on-static to rmake

Author: Oneirical

Diff for: src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -60,7 +60,6 @@ run-make/libtest-thread-limit/Makefile
 run-make/link-cfg/Makefile
 run-make/link-framework/Makefile
 run-make/link-path-order/Makefile
-run-make/linkage-attr-on-static/Makefile
 run-make/long-linker-command-lines-cmd-exe/Makefile
 run-make/long-linker-command-lines/Makefile
 run-make/longjmp-across-rust/Makefile
@@ -93,7 +92,6 @@ run-make/redundant-libs/Makefile
 run-make/remap-path-prefix-dwarf/Makefile
 run-make/reproducible-build-2/Makefile
 run-make/reproducible-build/Makefile
-run-make/return-non-c-like-enum-from-c/Makefile
 run-make/rlib-format-packed-bundled-libs-2/Makefile
 run-make/rlib-format-packed-bundled-libs-3/Makefile
 run-make/rlib-format-packed-bundled-libs/Makefile

Diff for: tests/run-make/linkage-attr-on-static/Makefile

@@ -0,0 +1,15 @@
+// #[linkage] is a useful attribute which can be applied to statics to allow
+// external linkage, something which was not possible before #18890. This test
+// checks that using this new feature results in successful compilation and execution.
+// See https://github.com/rust-lang/rust/pull/18890
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+
+use run_make_support::{build_native_static_lib, run, rustc};
+
+fn main() {
+    build_native_static_lib("foo");
+    rustc().input("bar.rs").run();
+    run("bar");
+}