Added failing test for dynamic properties of objects.

test/function/object-dynamic-properties/_config.js

@@ -0,0 +1,5 @@
+var assert = require('assert');
+
+module.exports = {
+	description: 'dynamic object assignments should be imported'
+};

test/function/object-dynamic-properties/main.js

@@ -0,0 +1,3 @@
+import tags from './tags';
+
+assert(tags['[object Object]'], true);

test/function/object-dynamic-properties/tags.js

@@ -0,0 +1,21 @@
+// Emulates a piece of Lodash source code.
+// The tag strings are not imported, and a runtime error ensues.
+
+let objTag = '[object Object]';
+let arrTag = '[object Array]';
+let fnTag = '[object Function]';
+let dateTag = '[object Date]';
+
+let strTag = '[object String]';
+let numTag = '[object Number]';
+
+// Only the code below is included in the bundle.
+
+var tags = {};
+
+tags[objTag] = tags[arrTag] =
+tags[fnTag] = tags[dateTag] = true;
+
+tags[strTag] = tags[numTag] = false;
+
+export default tags;