fix(copy) $resource throws TypeError when json has both properties and arrays

Closes angular#1044

Author: joelreed-oa

src/Angular.js

@@ -583,7 +583,7 @@ function copy(source, destination){
     }
   } else {
     if (source === destination) throw Error("Can't copy equivalent objects or arrays");
-    if (isArray(source)) {
+    if (isArray(source) && isArray(destination)) {
       destination.length = 0;
       for ( var i = 0; i < source.length; i++) {
         destination.push(copy(source[i]));

test/AngularSpec.js

@@ -83,6 +83,12 @@ describe('angular', function() {
       expect(copy([{key:null}])).toEqual([{key:null}]);
     });
 
+    it("should copy an object with properities and arrays", function() {
+      var src = {name:"value", "array1": [ {"p1": "v1"}, {"p2": "v2"} ]};
+      var dst = copy(src);
+      expect(dst).toEqual(src);
+    });
+
     it('should throw an exception if a Scope is being copied', inject(function($rootScope) {
       expect(function() { copy($rootScope.$new()); }).toThrow("Can't copy Window or Scope");
     }));