enable tests

test/form/namespace-optimization/_config.js

@@ -1,4 +1,3 @@
 module.exports = {
-	skip: true,
 	description: 'it does static lookup optimization of internal namespaces'
 };

test/function/export-from-no-local-binding/_config.js

@@ -1,13 +1,7 @@
 var assert = require( 'assert' );
 
 module.exports = {
-	description: 'export from does not create a local binding',
-
-	error: function ( err ) {
-		assert.ok( false, 'TODO: assertion is skipped because it is not used... we need to implement something like /*rollup: include */')
-	},
-
-	skip: true
+	description: 'export from does not create a local binding'
 };
 
 // test copied from https://github.com/esnext/es6-module-transpiler/tree/master/test/examples/export-from