fix ts prompt spec

packages/@vue/cli/lib/promptModules/__tests__/typescript.spec.js

@@ -17,6 +17,10 @@ test('should work', async () => {
       message: 'Use class-style component',
       confirm: true
     },
+    {
+      message: 'Use Babel',
+      confirm: true
+    },
     {
       message: 'Pick additional lint features',
       choices: ['on save', 'on commit'],
@@ -29,7 +33,8 @@ test('should work', async () => {
       '@vue/cli-plugin-typescript': {
         classComponent: true,
         lint: true,
-        lintOn: ['save', 'commit']
+        lintOn: ['save', 'commit'],
+        useTsWithBabel: true
       }
     }
   }

packages/@vue/cli/lib/promptModules/typescript.js

@@ -26,7 +26,7 @@ module.exports = cli => {
       name: 'useTsWithBabel',
       when: answers => answers.features.includes('ts'),
       type: 'confirm',
-      message: 'Use TypeScript together with Babel for auto-detected polyfills?'
+      message: 'Use Babel alongside TypeScript for auto-detected polyfills?'
     })
   }