Reviewed by Maciej Stachowiak.

        Bug 21200: Allow direct access to 'arguments' without using op_resolve
        <https://bugs.webkit.org/show_bug.cgi?id=21200>

        Allow fast access to the 'arguments' object by adding an extra slot to
        the callframe to store it.

        * JavaScriptCore.exp:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::registerFor):
        * VM/CodeGenerator.h:
        (JSC::CodeGenerator::registerFor):
        * VM/Machine.cpp:
        (JSC::Machine::initializeCallFrame):
        (JSC::Machine::dumpRegisters):
        (JSC::Machine::privateExecute):
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_construct_JSConstruct):
        * VM/Machine.h:
        * VM/Opcode.h:
        * VM/RegisterFile.h:
        (JSC::RegisterFile::):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::mark):
        (JSC::JSActivation::argumentsGetter):
        * kjs/JSActivation.h:
        (JSC::JSActivation::JSActivationData::JSActivationData):
        * kjs/NodeInfo.h:
        * kjs/Parser.cpp:
        (JSC::Parser::didFinishParsing):
        * kjs/Parser.h:
        (JSC::Parser::parse):
        * kjs/grammar.y:
        * kjs/nodes.cpp:
        (JSC::ScopeNode::ScopeNode):
        (JSC::ProgramNode::ProgramNode):
        (JSC::ProgramNode::create):
        (JSC::EvalNode::EvalNode):
        (JSC::EvalNode::create):
        (JSC::FunctionBodyNode::FunctionBodyNode):
        (JSC::FunctionBodyNode::create):
        * kjs/nodes.h:
        (JSC::ScopeNode::usesArguments):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@37050 268f45cc-cd09-0410-ab3c-d52691b4dbfc