fix platform compiler directives

src/entries/web-compiler.js

@@ -1,6 +1,6 @@
 import { extend } from '../shared/util'
 import { compile as baseCompile } from '../compiler/index'
-import * as directives from '../platforms/web/compiler/directives/index'
+import directives from '../platforms/web/compiler/directives/index'
 import { isReservedTag, mustUseProp, getTagNamespace } from '../platforms/web/util'
 
 const baseOptions = {