- fix alignment problem with NaN and Inf globals

        * kjs/fpconst.cpp: Move the contents of this file from here back to
        value.cpp. The reason this was in a separate file is that the DARWIN
        version of this used a declaration of the globals with a different
        type to avoid creating "init routines". That's no longer necessary for
        DARWIN and was never necessary for the non-DARWIN code path.
        To make this patch easy to merge, I didn't actually delete this file
        yet. We'll do that in a separate changeset.

        * kjs/value.cpp: If C99's NAN and INFINITY are present, then use them,
        othrewise use the union trick from fpconst.cpp. I think it would be
        better to eliminate KJS::NaN and KJS::Inf and just use NAN and INFINITY
        directly or std::numeric_limits<double>::quiet_nan() and
        std::numeric_limits<double>::infinity(). But when I tried that, it
        slowed down SunSpider. Someone else could do that cleanup if they
        could do it without slowing down the engine.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@29243 268f45cc-cd09-0410-ab3c-d52691b4dbfc