Reviewed by Darin Adler.

        A test for Date binding.
        https://bugs.webkit.org/show_bug.cgi?id=32698

        * fast/forms/input-valueasdate-expected.txt: Added.
        * fast/forms/input-valueasdate.html: Added.
        * fast/forms/script-tests/input-valueasdate.js: Added.

2009-12-20  Kent Tamura  <tkent@chromium.org>

        Reviewed by Darin Adler.

        Add support for JavaScriptCore Date binding.
        https://bugs.webkit.org/show_bug.cgi?id=32698

        This is needed for HTMLInputElement::valueAsDate and
        HTMLTimeElement::valueAsDate.

        A Date instance is mapped to a double value in C++.
        - If null or undefined is set to a JavaScript property, C++ setter
          function receives NaN.
        - If a getter C++ function returns NaN or infinity, a JavaScript
          property returns null.

        Test: fast/forms/input-valueasdate.html

        * bindings/js/JSDOMBinding.cpp:
        (WebCore::jsDateOrNull): Implement the above.
        (WebCore::valueToDate): ditto.
        * bindings/js/JSDOMBinding.h: Declare them.
        * bindings/scripts/CodeGeneratorJS.pm: Produce jsDateOrNull() or
          valueToDate() for Date type.
        * html/HTMLInputElement.cpp:
        (WebCore::HTMLInputElement::valueAsDate): Temporal implementation.
        (WebCore::HTMLInputElement::setValueAsDate): ditto.
        * html/HTMLInputElement.h:
        * html/HTMLInputElement.idl: Declare valueAsDate.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@52434 268f45cc-cd09-0410-ab3c-d52691b4dbfc