Reviewed by Darin.

    Reviewed by Darin.

        - change blocks to 64k in size, and use various platform-specific calls to allocate at 64k-aligned addresses
        http://bugs.webkit.org/show_bug.cgi?id=13383

        * kjs/collector.cpp:
        (KJS::allocateBlock): New function to allocate 64k of 64k-aligned memory
        (KJS::freeBlock): Corresponding free
        (KJS::Collector::allocate):
        (KJS::Collector::collect):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@21017 268f45cc-cd09-0410-ab3c-d52691b4dbfc