Ensure _.bind correctly appends array arguments to partially applied arguments.

Former-commit-id: 4fdb100f83ff9a0eafcba3f5bf91872748205595

lodash.js

@@ -3224,7 +3224,7 @@
       }
       if (partialArgs.length) {
         args = args.length
-          ? concat.apply(partialArgs, args)
+          ? partialArgs.concat(slice.call(args))
           : partialArgs;
       }
       if (this instanceof bound) {

test/test.js

@@ -143,6 +143,14 @@
   QUnit.module('lodash.bind');
 
   (function() {
+    test('should correctly append array arguments to partially applied arguments (test in IE < 9)', function() {
+      var args,
+          bound = _.bind(function() { args = slice.call(arguments); }, null, 'a');
+
+      bound(['b'], 'c');
+      deepEqual(args, ['a', ['b'], 'c']);
+    });
+
     test('supports lazy bind', function() {
       var object = {
         'name': 'moe',