Merge pull request #17492 from plantain-00/uppercamelcase-namespace

[uppercaselcase]update types of uppercaselcase

types/uppercamelcase/index.d.ts

@@ -5,3 +5,4 @@
 
 declare function upperCamelCase(...args: string[]): string;
 export = upperCamelCase;
+declare namespace upperCamelCase { }

types/uppercamelcase/uppercamelcase-tests.ts

@@ -1,4 +1,5 @@
 import upperCamelCase = require('uppercamelcase');
+import * as upperCamelCase2 from "uppercamelcase";
 
 upperCamelCase('foo-bar');
 //=> FooBar