https://bugs.webkit.org/show_bug.cgi?id=104807

Patch by Vahag Vardanyan <vaag@ispras.ru> on 2013-04-08
Reviewed by Oliver Hunt.

Switch to using fromCharCode intrinsic instead of call operation in some cases.

* dfg/DFGAbstractState.cpp:
(JSC::DFG::AbstractState::executeEffects):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleIntrinsic):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* dfg/DFGNodeType.h:
(DFG):
* dfg/DFGOperations.cpp:
* dfg/DFGOperations.h:
* dfg/DFGPredictionPropagationPhase.cpp:
(JSC::DFG::PredictionPropagationPhase::propagate):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileFromCharCode):
(DFG):
* dfg/DFGSpeculativeJIT.h:
(JSC::DFG::SpeculativeJIT::callOperation):
(SpeculativeJIT):
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* runtime/StringConstructor.cpp:
(JSC::stringFromCharCode):
(JSC):
* runtime/StringConstructor.h:
(JSC):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147985 268f45cc-cd09-0410-ab3c-d52691b4dbfc