Convert some WebAssembly run-make tests to Rust

This commit rewrites a number of `run-make` tests centered around wasm
to instead use `rmake.rs` and additionally use the `wasm32-wasip1`
target instead of `wasm32-unknown-unknown`. Testing no longer requires
Node.js and additionally uses the `wasmparser` crate from crates.io to
parse outputs and power assertions.

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/run-make/wasm-stringify-ints-small/rmake.rs b/tests/run-make/wasm-stringify-ints-small/rmake.rs
new file mode 100644
index 00000000000..80cff7acdf4
--- /dev/null
+++ b/tests/run-make/wasm-stringify-ints-small/rmake.rs
@@ -0,0 +1,17 @@
+#![deny(warnings)]
+
+extern crate run_make_support;
+
+use run_make_support::{out_dir, rustc};
+
+fn main() {
+    if std::env::var("TARGET").unwrap() != "wasm32-wasip1" {
+        return;
+    }
+
+    rustc().arg("foo.rs").arg("--target=wasm32-wasip1").arg("-Clto").arg("-O").run();
+
+    let bytes = std::fs::read(&out_dir().join("foo.wasm")).unwrap();
+    println!("{}", bytes.len());
+    assert!(bytes.len() < 50_000);
+}