Improve @babel/runtime esm stability (#12883)

test/runtime-integration/rollup/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "@babel-internal/runtime-integration-rollup",
+  "private": true,
+  "devDependencies": {
+    "@babel/runtime": "workspace:*",
+    "@rollup/plugin-commonjs": "^17.1.0",
+    "@rollup/plugin-node-resolve": "^11.2.0",
+    "rollup": "^2.39.1"
+  }
+}

test/runtime-integration/rollup/rollup.absolute.config.js

@@ -0,0 +1,13 @@
+import commonjs from "@rollup/plugin-commonjs";
+import nodeResolve from "@rollup/plugin-node-resolve";
+import path from "path";
+
+export default {
+  input: path.resolve(__dirname, "../src/absolute/main-esm.mjs"),
+  plugins: [commonjs(), nodeResolve()],
+
+  output: {
+    file: path.resolve(__dirname, "output-absolute.js"),
+    format: "cjs",
+  },
+};

test/runtime-integration/rollup/rollup.config.js

@@ -0,0 +1,13 @@
+import commonjs from "@rollup/plugin-commonjs";
+import nodeResolve from "@rollup/plugin-node-resolve";
+import path from "path";
+
+export default {
+  input: path.resolve(__dirname, "../src/main-esm.mjs"),
+  plugins: [commonjs(), nodeResolve()],
+
+  output: {
+    file: path.resolve(__dirname, "output.js"),
+    format: "cjs",
+  },
+};