Reference the CommonJS helpers when a file is not explicitly a module. (#8518)

packages/babel-plugin-transform-runtime/src/index.js

@@ -107,7 +107,6 @@ export default declare((api, options, dirname) => {
     );
   }
 
-  const helpersDir = useESModules ? "helpers/esm" : "helpers";
   const injectCoreJS2 = `${corejsVersion}` === "2";
   const moduleName = injectCoreJS2
     ? "@babel/runtime-corejs2"
@@ -145,6 +144,11 @@ export default declare((api, options, dirname) => {
           const blockHoist =
             isInteropHelper && !isModule(file.path) ? 4 : undefined;
 
+          const helpersDir =
+            useESModules && file.path.node.sourceType === "module"
+              ? "helpers/esm"
+              : "helpers";
+
           return this.addDefaultImport(
             `${modulePath}/${helpersDir}/${name}`,
             name,