Migrate wasm-override-linker to rmake

Author: Rejyr

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -199,5 +199,4 @@ run-make/unstable-flag-required/Makefile
 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/x86_64-fortanix-unknown-sgx-lvi/Makefile

tests/run-make/wasm-override-linker/Makefile

@@ -0,0 +1,17 @@
+// How to run this
+// $ RUSTBUILD_FORCE_CLANG_BASED_TESTS=1 ./x.py test tests/run-make/wasm-override-linker/
+
+//@ needs-force-clang-based-tests
+
+use run_make_support::{env_var, rustc, target};
+
+fn main() {
+    if matches!(target().as_str(), "wasm32-unknown-unknown" | "wasm64-unknown-unknown") {
+        rustc()
+            .input("foo.rs")
+            .crate_type("cdylib")
+            .target(&target())
+            .linker(&env_var("CLANG"))
+            .run();
+    }
+}