remove UString::cost() & make atArrayIndex a free function.

Reviewed by Sam Weinig

JavaScriptCore: 

* JavaScriptCore.exp:
* bytecode/CodeBlock.cpp:
(JSC::constantName):
(JSC::idName):
(JSC::CodeBlock::registerName):
(JSC::regexpName):
(JSC::printGlobalResolveInfo):
(JSC::printStructureStubInfo):
(JSC::CodeBlock::printStructure):
(JSC::CodeBlock::printStructures):
* jsc.cpp:
(functionPrint):
(functionDebug):
(runInteractive):
(fillBufferWithContentsOfFile):
* pcre/pcre_exec.cpp:
(Histogram::~Histogram):
* profiler/CallIdentifier.h:
(JSC::CallIdentifier::c_str):
* profiler/Profile.cpp:
(JSC::Profile::debugPrintDataSampleStyle):
* profiler/ProfileGenerator.cpp:
(JSC::ProfileGenerator::willExecute):
(JSC::ProfileGenerator::didExecute):
* profiler/ProfileNode.cpp:
(JSC::ProfileNode::debugPrintData):
(JSC::ProfileNode::debugPrintDataSampleStyle):
* runtime/Arguments.cpp:
(JSC::Arguments::getOwnPropertySlot):
(JSC::Arguments::getOwnPropertyDescriptor):
(JSC::Arguments::put):
(JSC::Arguments::deleteProperty):
* runtime/DateConversion.cpp:
(JSC::parseDate):
* runtime/Identifier.h:
(JSC::Identifier::toStrictUInt32):
* runtime/JSArray.cpp:
(JSC::JSArray::getOwnPropertySlot):
(JSC::JSArray::getOwnPropertyDescriptor):
(JSC::JSArray::put):
(JSC::JSArray::deleteProperty):
* runtime/JSArray.h:
(JSC::toArrayIndex):
* runtime/JSGlobalObjectFunctions.cpp:
(JSC::encode):
(JSC::parseInt):
(JSC::globalFuncJSCPrint):
* runtime/JSString.h:
(JSC::RopeBuilder::JSString):
* runtime/UString.cpp:
(JSC::UString::toDouble):
(JSC::putUTF8Triple):
(JSC::UString::utf8):
* runtime/UString.h:
(JSC::UString::~UString):
(JSC::UString::isNull):
(JSC::UString::isEmpty):
(JSC::UString::impl):
* wtf/text/WTFString.cpp:
(WTF::String::utf8):
* wtf/text/WTFString.h:
(WTF::String::~String):
(WTF::String::swap):
(WTF::String::isNull):
(WTF::String::isEmpty):
(WTF::String::impl):
(WTF::String::length):
(WTF::String::String):
(WTF::String::isHashTableDeletedValue):

WebCore: 

* WebCore.xcodeproj/project.pbxproj:
* bindings/js/JSDOMWindowCustom.cpp:
(WebCore::JSDOMWindow::getOwnPropertySlot):
(WebCore::JSDOMWindow::getOwnPropertyDescriptor):
* bridge/NP_jsobject.cpp:
(_NPN_Enumerate):
* bridge/c/c_utility.cpp:
(JSC::Bindings::convertValueToNPVariant):
* bridge/jni/JNIBridge.cpp:
(JavaParameter::JavaParameter):
(JavaMethod::JavaMethod):
(JavaMethod::signature):
(JavaMethod::methodID):
* bridge/jni/JNIBridge.h:
(JSC::Bindings::JavaString::utf8):
(JSC::Bindings::JavaParameter::type):
(JSC::Bindings::JavaMethod::returnType):
* bridge/jni/jni_jsobject.mm:
(JavaJSObject::call):
(JavaJSObject::eval):
(JavaJSObject::getMember):
(JavaJSObject::setMember):
(JavaJSObject::removeMember):
(JavaJSObject::convertJObjectToValue):
* bridge/jni/jsc/JNIBridgeJSC.cpp:
(JavaField::JavaField):
(JavaField::valueFromInstance):
(JavaField::setValueToInstance):
* bridge/jni/jsc/JNIBridgeJSC.h:
(JSC::Bindings::JavaField::type):
* bridge/jni/jsc/JavaInstanceJSC.cpp:
(JavaInstance::invokeMethod):
* bridge/jni/jsc/JavaStringJSC.h:
(JSC::Bindings::JavaStringImpl::utf8):
* bridge/runtime_array.cpp:
(JSC::RuntimeArray::getOwnPropertySlot):
(JSC::RuntimeArray::getOwnPropertyDescriptor):
(JSC::RuntimeArray::put):

WebKit/mac: 

* Plugins/Hosted/NetscapePluginInstanceProxy.mm:
(WebKit::NetscapePluginInstanceProxy::enumerate):

WebKit/wx: 

* WebFrame.cpp:
(wxWebFrame::RunScript):

WebKit2: 

* WebProcess/Plugins/JSNPObject.cpp:
(WebKit::npIdentifierFromIdentifier):
* WebProcess/Plugins/NPJSObject.cpp:
(WebKit::NPJSObject::enumerate):
* WebProcess/Plugins/NPRuntimeObjectMap.cpp:
(WebKit::NPRuntimeObjectMap::convertJSValueToNPVariant):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@65305 268f45cc-cd09-0410-ab3c-d52691b4dbfc