Reviewed by Maciej.

    Reviewed by Maciej.

        - http://bugs.webkit.org/show_bug.cgi?id=15912
          fasta spends a lot of time in qsort

        * kjs/property_map.cpp:
        (KJS::PropertyMap::getEnumerablePropertyNames):
        Use insertion sort instead of qsort for small sets of property names.
        We can probably do some even-better speedups of for/in, but this nets
        0.6% overall and 6.7% on fasta.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@27634 268f45cc-cd09-0410-ab3c-d52691b4dbfc