Don't include 'default' export from 'export * from ...'

src/Module.js

@@ -288,7 +288,7 @@ export default class Module {
 			// bind the name to the other module's reference.
 			this.allExportsFrom.forEach( module => {
 				module.exports.getNames().forEach( name => {
-					if ( !this.exports.defines( name ) ) {
+					if ( name !== 'default' && !this.exports.defines( name ) ) {
 						this.exports.bind( name, module.exports.reference( name ) );
 					}
 				});

test/form/export-all-from-internal/_expected/amd.js

@@ -2,10 +2,8 @@ define(['exports'], function (exports) { 'use strict';
 
 	const a = 1;
 	const b = 2;
-	var internal = 42;
 
 	exports.a = a;
 	exports.b = b;
-	exports['default'] = internal;
 
 });

test/form/export-all-from-internal/_expected/cjs.js

@@ -2,8 +2,6 @@
 
 const a = 1;
 const b = 2;
-var internal = 42;
 
 exports.a = a;
 exports.b = b;
-exports['default'] = internal;

test/form/export-all-from-internal/_expected/es6.js

@@ -1,6 +1,4 @@
 const a = 1;
 const b = 2;
-var internal = 42;
 
 export { a, b };
-export default internal;

test/form/export-all-from-internal/_expected/iife.js

@@ -2,10 +2,8 @@
 
 	const a = 1;
 	const b = 2;
-	var internal = 42;
 
 	exports.a = a;
 	exports.b = b;
-	exports['default'] = internal;
 
 })((this.exposedInternals = {}));

test/form/export-all-from-internal/_expected/umd.js

@@ -6,10 +6,8 @@
 
 	const a = 1;
 	const b = 2;
-	var internal = 42;
 
 	exports.a = a;
 	exports.b = b;
-	exports['default'] = internal;
 
 }));