Better error for export * as ns without the correct plugin (#13296)

packages/babel-plugin-transform-modules-commonjs/test/fixtures/noInterop-loose/export-namespace-without-plugin/input.mjs

@@ -0,0 +1,2 @@
+export * as ns from "./foo";
+

packages/babel-plugin-transform-modules-commonjs/test/fixtures/noInterop-loose/export-namespace-without-plugin/options.json

@@ -0,0 +1,3 @@
+{
+  "throws": "Export namespace should be first transformed by `@babel/plugin-proposal-export-namespace-from`."
+}

packages/babel-plugin-transform-modules-commonjs/test/fixtures/noInterop-loose/options.json

@@ -0,0 +1,5 @@
+{
+  "plugins": [
+    ["transform-modules-commonjs", { "noInterop": true, "loose": true }]
+  ]
+}