2014-04-03  Sharath Kamath  <s.kamath@samsung.com>

        Adding a new Overload for SetArg() API.

        Issue #501

        Reviewed by Antonio.

        As per changes in the specification based on
        [http://www.khronos.org/bugzilla/show_bug.cgi?id=1117]
        overloading the setArg API to take WebCLImage & WebCLBuffer
        instead of WebCLMemoryObject.

        All setArg() test cases in conformance test suite.

        * Modules/webcl/WebCLKernel.cpp:
        (WebCore::WebCLKernel::setArg):
        * Modules/webcl/WebCLKernel.h:
        * Modules/webcl/WebCLKernel.idl: