if a typedef is exported, export the matching var

Summary: Fixes issue #187.

Reviewers: rkirov

Reviewed By: rkirov

Subscribers: typescript-eng

Differential Revision: https://reviews.angular.io/D210

Author: evmar

src/tsickle.ts

@@ -846,6 +846,7 @@ class Annotator extends Rewriter {
     if (this.options.untyped) return;
     // Write a Closure typedef, which involves an unused "var" declaration.
     this.emit(`\n/** @typedef {${this.typeToClosure(node)}} */\n`);
+    if (node.flags & ts.NodeFlags.Export) this.emit('export ');
     this.emit(`var ${node.name.getText()}: void;\n`);
   }
 

test_files/typedef/typedef.js

@@ -1,4 +1,5 @@
-goog.module('test_files.typedef.typedef');var module = module || {id: 'test_files/typedef/typedef.js'};/** @typedef {number} */
+goog.module('test_files.typedef.typedef');var module = module || {id: 'test_files/typedef/typedef.js'};
+/** @typedef {number} */
 var MyType;
 var /** @type {number} */ y = 3;
 /** @typedef {{value: number, next: ?}} */

test_files/typedef/typedef.ts

@@ -1,4 +1,6 @@
 type MyType = number;
 var y: MyType = 3;
 
-type Recursive = {value: number, next: Recursive};
+type Recursive = {value: number, next: Recursive};
+
+export type ExportedType = string;

test_files/typedef/typedef.tsickle.ts

@@ -7,3 +7,8 @@ var /** @type {number} */ y: MyType = 3;
 type Recursive = {value: number, next: Recursive};
 /** @typedef {{value: number, next: ?}} */
 var Recursive: void;
+
+
+export type ExportedType = string;
+/** @typedef {string} */
+export var ExportedType: void;