chore: checkpoint before Python removal

vendor/wasm-metadata/src/utils.rs

@@ -0,0 +1,21 @@
+use anyhow::Result;
+
+pub(crate) fn name_map(map: &wasmparser::NameMap<'_>) -> Result<wasm_encoder::NameMap> {
+    let mut out = wasm_encoder::NameMap::new();
+    for m in map.clone().into_iter() {
+        let m = m?;
+        out.append(m.index, m.name);
+    }
+    Ok(out)
+}
+
+pub(crate) fn indirect_name_map(
+    map: &wasmparser::IndirectNameMap<'_>,
+) -> Result<wasm_encoder::IndirectNameMap> {
+    let mut out = wasm_encoder::IndirectNameMap::new();
+    for m in map.clone().into_iter() {
+        let m = m?;
+        out.append(m.index, &name_map(&m.names)?);
+    }
+    Ok(out)
+}