Combine per-thread objects into one, to make it easier to support legacy clients (for
        which they shouldn't be really per-thread).

        No change on SunSpider total.

        * JavaScriptCore.xcodeproj/project.pbxproj: Added JSGlobalData.{h,cpp}

        * kjs/JSGlobalData.cpp: Added.
        (KJS::JSGlobalData::JSGlobalData):
        (KJS::JSGlobalData::~JSGlobalData):
        (KJS::JSGlobalData::threadInstance):
        * kjs/JSGlobalData.h: Added.
        This class encapsulates all data that should be per-thread (or shared between legacy clients).
        It will also keep a Heap pointer, but right now, Heap (Collector) methods are all static.

        * kjs/identifier.h:
        (KJS::Identifier::Identifier):
        Added a constructor explicitly taking JSGlobalData to access IdentifierTable. Actually,
        all of them should, but this will be a separate patch.

        * kjs/identifier.cpp:
        (KJS::IdentifierTable::literalTable):
        (KJS::createIdentifierTable):
        (KJS::deleteIdentifierTable):
        (KJS::Identifier::add):
        (KJS::Identifier::addSlowCase):
        Combined IdentifierTable and LiteralIdentifierTable into a single class for simplicity.

        * kjs/grammar.y: kjsyyparse now takes JSGlobalData, not just a Lexer.

        * kjs/nodes.cpp:
        (KJS::Node::Node):
        (KJS::EvalFunctionCallNode::emitCode):
        (KJS::ScopeNode::ScopeNode):
        Changed to access Lexer and Parser via JSGlobalData::threadInstance(). This is also a
        temporary measure, they will need to use JSGlobalData explicitly.

        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::CodeGenerator):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (KJS::callEval):
        * kjs/CommonIdentifiers.cpp:
        (KJS::CommonIdentifiers::CommonIdentifiers):
        * kjs/CommonIdentifiers.h:
        * kjs/DebuggerCallFrame.cpp:
        (KJS::DebuggerCallFrame::evaluate):
        * kjs/ExecState.cpp:
        (KJS::ExecState::ExecState):
        * kjs/ExecState.h:
        (KJS::ExecState::globalData):
        (KJS::ExecState::identifierTable):
        (KJS::ExecState::propertyNames):
        (KJS::ExecState::emptyList):
        (KJS::ExecState::lexer):
        (KJS::ExecState::parser):
        (KJS::ExecState::arrayTable):
        (KJS::ExecState::dateTable):
        (KJS::ExecState::mathTable):
        (KJS::ExecState::numberTable):
        (KJS::ExecState::RegExpImpTable):
        (KJS::ExecState::RegExpObjectImpTable):
        (KJS::ExecState::stringTable):
        * kjs/InitializeThreading.cpp:
        (KJS::initializeThreadingOnce):
        * kjs/JSGlobalObject.cpp:
        (KJS::JSGlobalObject::init):
        * kjs/JSGlobalObject.h:
        (KJS::JSGlobalObject::JSGlobalObjectData::JSGlobalObjectData):
        (KJS::JSGlobalObject::head):
        (KJS::JSGlobalObject::globalData):
        * kjs/Parser.cpp:
        (KJS::Parser::parse):
        * kjs/Parser.h:
        * kjs/function.cpp:
        (KJS::FunctionImp::getParameterName):
        (KJS::IndexToNameMap::unMap):
        (KJS::globalFuncEval):
        * kjs/function_object.cpp:
        (KJS::FunctionObjectImp::construct):
        * kjs/interpreter.cpp:
        (KJS::Interpreter::checkSyntax):
        (KJS::Interpreter::evaluate):
        * kjs/lexer.cpp:
        (kjsyylex):
        * kjs/lexer.h:
        * kjs/testkjs.cpp:
        (prettyPrintScript):
        Updated for the above changes. Most of threadInstance uses here will need to be replaced with
        explicitly passed pointers to support legacy JSC clients.

        * JavaScriptCore.exp: Removed KJS::parser().



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@34412 268f45cc-cd09-0410-ab3c-d52691b4dbfc