Fix a couple of minor issues in dynamic-import tests

test/language/expressions/dynamic-import/indirect-resolution-1_FIXTURE.js

 // Copyright (C) 2018 Leo Balter. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 
-export default import('indirect-resolution-2_FIXTURE.js');
+export default import('./indirect-resolution-2_FIXTURE.js');

test/language/expressions/dynamic-import/namespace/default-property-not-set-own.js

@@ -5,7 +5,7 @@
 description: The default property is not set the if the module doesn't export any default
 esid: sec-finishdynamicimport
 features: [dynamic-import]
-flags: [async]
+flags: [async, module]
 info: |
     Runtime Semantics: FinishDynamicImport ( referencingScriptOrModule, specifier, promiseCapability, completion )