Array.prototype.indexOf not supported on IE8

[foxbunny]

I'm currently running some tests on IE8, and toHaveClass matcher fails on IE8 because Array.prototype.indexOf is undefined.

To work around this issue, I've patched the matcher to use regex:

    toHaveClass: function(className)
    {
      var classes = jasmine.DOM.trim(this.actual.className);
      return RegExp('(^| )' + className + '( |$)').test(classes);
    },

The regex itself comes from here.