add test case for no extension

Author: guybedford

test/es-module/test-esm-import-meta-resolve.mjs

@@ -11,8 +11,8 @@ assert.strictEqual(import.meta.resolve('./test-esm-import-meta.mjs'),
                    dirname + 'test-esm-import-meta.mjs');
 const notFound = import.meta.resolve('./notfound.mjs');
 assert.strictEqual(new URL(notFound).href, new URL('./notfound.mjs', import.meta.url).href);
-const otherExtension = import.meta.resolve('./asset.ext');
-assert.strictEqual(new URL(otherExtension).href, new URL('./asset.ext', import.meta.url).href);
+const noExtension = import.meta.resolve('./asset');
+assert.strictEqual(new URL(noExtension).href, new URL('./asset', import.meta.url).href);
 try {
   import.meta.resolve('does-not-exist');
   assert.fail();