disable webpack e2e on Windows.

Author: hansl

tests/e2e/tests/packages/webpack/test.ts

@@ -8,6 +8,11 @@ import {expectFileSizeToBeUnder} from '../../../utils/fs';
 export default function(argv: any, skipCleaning: () => void) {
   const currentDir = process.cwd();
 
+  if (process.platform.startsWith('win')) {
+    // Disable the test on Windows.
+    return Promise.resolve();
+  }
+
   return Promise.resolve()
     .then(() => copyAssets('webpack/test-app'))
     .then(dir => process.chdir(dir))