types: test star import

Author: ChristianMurphy

types/test.ts

@@ -1,4 +1,5 @@
-import mdastUtilToString = require('mdast-util-to-string')
+import * as mdastUtilToString from 'mdast-util-to-string'
 
 mdastUtilToString() // $ExpectError
 mdastUtilToString({type: 'root'}) // $ExpectType string
+mdastUtilToString([{type: 'root'}]) // $ExpectType string