Reviewed by Darin.
        
        - Set up new prototype macros and avoid using #if without defined() in JSC
        
        Added new PLATFORM macros and related, to make sure #if's all check if relevant macros
        are defined, and to separate core OS-level dependencies from operating environment
        dependencies so you can, e.g., build KDE on Mac or Windows.

        * kxmlcore/Platform.h: Added.

        - deploy them everywhere in JavaScriptCore
        
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * bindings/jni/jni_utility.cpp:
        (KJS::Bindings::convertValueToJValue):
        * bindings/objc/WebScriptObject.mm:
        * bindings/objc/objc_instance.mm:
        (ObjcInstance::end):
        * bindings/softlinking.h:
        * bindings/testbindings.mm:
        (main):
        * kjs/JSLock.cpp:
        * kjs/collector.cpp:
        (KJS::Collector::markCurrentThreadConservatively):
        (KJS::Collector::markOtherThreadConservatively):
        (KJS::Collector::markStackObjectsConservatively):
        * kjs/config.h:
        * kjs/date_object.cpp:
        (gmtoffset):
        (KJS::formatTime):
        (KJS::DateProtoFunc::callAsFunction):
        (KJS::DateObjectImp::construct):
        (KJS::makeTime):
        * kjs/dtoa.cpp:
        * kjs/fpconst.cpp:
        (KJS::sizeof):
        (KJS::):
        * kjs/grammar.y:
        * kjs/identifier.cpp:
        * kjs/internal.cpp:
        * kjs/interpreter.cpp:
        (KJS::Interpreter::evaluate):
        (KJS::Interpreter::createLanguageInstanceForValue):
        * kjs/interpreter.h:
        * kjs/lookup.cpp:
        * kjs/lookup.h:
        * kjs/math_object.cpp:
        * kjs/object.cpp:
        * kjs/object.h:
        * kjs/operations.cpp:
        (KJS::isNaN):
        (KJS::isInf):
        (KJS::isPosInf):
        (KJS::isNegInf):
        * kjs/operations.h:
        * kjs/regexp.cpp:
        (KJS::RegExp::RegExp):
        (KJS::RegExp::~RegExp):
        (KJS::RegExp::match):
        * kjs/regexp.h:
        * kjs/testkjs.cpp:
        (StopWatch::start):
        (StopWatch::stop):
        (StopWatch::getElapsedMS):
        * kjs/ustring.cpp:
        * kjs/ustring.h:
        * kxmlcore/AlwaysInline.h:
        * kxmlcore/Assertions.cpp:
        * kxmlcore/Assertions.h:
        * kxmlcore/FastMalloc.cpp:
        (KXMLCore::):
        * kxmlcore/FastMalloc.h:
        * kxmlcore/FastMallocInternal.h:
        * kxmlcore/HashTable.h:
        * kxmlcore/TCPageMap.h:
        * kxmlcore/TCSpinLock.h:
        (TCMalloc_SpinLock::Lock):
        (TCMalloc_SpinLock::Unlock):
        (TCMalloc_SlowLock):
        * kxmlcore/TCSystemAlloc.cpp:
        (TCMalloc_SystemAlloc):
        * os-win32/stdint.h:

JavaScriptGlue:

        Not reviewed, but I noticed these trivial extra changes were needed to avoid
        breaking the build with my reviewed patch for:
        
        http://bugzilla.opendarwin.org/show_bug.cgi?id=7387
        
        Add config.h, includes of it, and Platform.h forwarding header.

        * JSBase.cpp:
        * JSObject.cpp:
        * JSRun.cpp:
        * JSUtils.cpp:
        * JSValueWrapper.cpp:
        * JavaScriptGlue.cpp:
        * UserObjectImp.cpp:
        * config.h: Added.
        * kxmlcore/Platform.h: Added.

WebCore:

        Reviewed by Darin.

        - WebCore updates for "Set up new prototype macros and avoid using #if without defined() in JSC"
        http://bugzilla.opendarwin.org/show_bug.cgi?id=7387
        
        Add Platform.h 

        * ForwardingHeaders/kxmlcore/Platform.h: Added.
        * bridge/mac/WebCoreFrameNamespaces.m:
        * bridge/mac/WebCoreViewFactory.m:
        * bridge/mac/WebDashboardRegion.m:
        * config.h:
        * platform/Logging.cpp:
        * platform/mac/ScrollViewMac.mm:
        (WebCore::ScrollView::addChild):
        * platform/mac/WebCoreCookieAdapter.m:
        * platform/mac/WebCoreGraphicsBridge.m:
        * platform/mac/WebCoreHistory.m:
        * platform/mac/WebCoreImageRendererFactory.m:
        * platform/mac/WebCoreKeyGenerator.m:
        * platform/mac/WebCoreView.m:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@13089 268f45cc-cd09-0410-ab3c-d52691b4dbfc