Reviewed by Cameron Zwarich.
        
        - split the "prototype" lookup for hasInstance into opcode stream so it can be cached
        
        ~5% speedup on v8 earley-boyer test

        * API/JSCallbackObject.h: Add a parameter for the pre-looked-up prototype.
        * API/JSCallbackObjectFunctions.h:
        (JSC::::hasInstance): Ditto.
        * API/JSValueRef.cpp:
        (JSValueIsInstanceOfConstructor): Look up and pass in prototype.
        * JavaScriptCore.exp:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass): Pass along prototype.
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump): Print third arg.
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitInstanceOf): Implement this, now that there
        is a third argument.
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): Pass along the prototype.
        (JSC::Machine::cti_op_instanceof): ditto
        * kjs/JSObject.cpp:
        (JSC::JSObject::hasInstance): Expect to get a pre-looked-up prototype.
        * kjs/JSObject.h:
        * kjs/nodes.cpp:
        (JSC::InstanceOfNode::emitCode): Emit a get_by_id of the prototype
        property and pass that register to instanceof.
        * kjs/nodes.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@36417 268f45cc-cd09-0410-ab3c-d52691b4dbfc