Reviewed by Maciej.

    Reviewed by Maciej.

        <rdar://problem/5546393> Whitespace handling doesn't match HTML5.

        HTML5 definition is the same as MSIE's, with the exception that the latter strips null
        characters. Firefox also treats U+0008 as whitespace, but not U+000B or U+000C.

        Test: fast/parser/html-whitespace.html

        * html/HTMLTokenizer.cpp:
        (WebCore::HTMLTokenizer::parseSpecial):
        (WebCore::HTMLTokenizer::parseTag):
        Use isASCIISpace, which matches HTML5 definition of whitespace, and also what we use to
        check for whitespace almost everywhere.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@27886 268f45cc-cd09-0410-ab3c-d52691b4dbfc