https://bugs.webkit.org/show_bug.cgi?id=122740

Reviewed by Mark Hahnenberg.
        
It took some effort to realize that the node->prediction() check in the DFG backends
are completely unnecessary since the ByteCodeParser will always insert a ForceOSRExit
if !prediction.
        
But other than that this was an easy patch.

* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleGetById):
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* ftl/FTLCapabilities.cpp:
(JSC::FTL::canCompile):
* ftl/FTLIntrinsicRepository.h:
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::LowerDFGToLLVM::compileNode):
(JSC::FTL::LowerDFGToLLVM::compileGetById):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157409 268f45cc-cd09-0410-ab3c-d52691b4dbfc