Enable test cases when import binding is used in export assignment directly or indirectly

tests/baselines/reference/es6ImportNamedImportInExportAssignment.js

@@ -14,3 +14,10 @@ exports.a = 10;
 var _a = require("es6ImportNamedImportInExportAssignment_0");
 var a = _a.a;
 module.exports = a;
+
+
+//// [es6ImportNamedImportInExportAssignment_0.d.ts]
+export declare var a: number;
+//// [es6ImportNamedImportInExportAssignment_1.d.ts]
+import { a } from "es6ImportNamedImportInExportAssignment_0";
+export = a;

tests/baselines/reference/es6ImportNamedImportInIndirectExportAssignment.js

@@ -27,3 +27,14 @@ var _a = require("es6ImportNamedImportInIndirectExportAssignment_0");
 var a = _a.a;
 var x = a;
 module.exports = x;
+
+
+//// [es6ImportNamedImportInIndirectExportAssignment_0.d.ts]
+export declare module a {
+    class c {
+    }
+}
+//// [es6ImportNamedImportInIndirectExportAssignment_1.d.ts]
+import { a } from "es6ImportNamedImportInIndirectExportAssignment_0";
+import x = a;
+export = x;

tests/cases/compiler/es6ImportNamedImportInExportAssignment.ts

@@ -1,5 +1,6 @@
 // @target: es6
 // @module: commonjs
+// @declaration: true
 
 // @filename: es6ImportNamedImportInExportAssignment_0.ts
 export var a = 10;

tests/cases/compiler/es6ImportNamedImportInIndirectExportAssignment.ts

@@ -1,5 +1,6 @@
 // @target: es6
 // @module: commonjs
+// @declaration: true
 
 // @filename: es6ImportNamedImportInIndirectExportAssignment_0.ts
 export module a {