Added test.

tests/cases/conformance/es6/modules/exportsAndImportsWithContextualKeywordNames01.ts

@@ -0,0 +1,20 @@
+// @module: commonjs
+// @target: es5
+
+// @filename: t1.ts
+let set = {
+    set foo(x: number) {
+    }
+}
+let get = 10;
+
+export { set, get };
+
+// @filename: t2.ts 
+import * as set from "./t1";
+
+// @filename: t3.ts 
+import { set as yield } from "./t1";
+
+// @filename: t4.ts 
+import { get } from "./t1";