retrieved was subjected to DFG's unboxing optimizations
https://bugs.webkit.org/show_bug.cgi?id=71436

Reviewed by Oliver Hunt.
        
This makes inlined arguments retrieval use some of the same machinery as
OSR to determine where from, and how, to retrieve a value that the DFG
might have somehow squirreled away while the old JIT would put it in its
obvious location, using an obvious format.
        
To that end, previously DFG-internal notions such as DataFormat,
VirtualRegister, and ValueRecovery are now in bytecode/ since they are
stored as part of InlineCallFrames.

* bytecode/CodeOrigin.h:
* dfg/DFGAbstractState.cpp:
(JSC::DFG::AbstractState::execute):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleInlining):
(JSC::DFG::ByteCodeParser::InlineStackEntry::InlineStackEntry):
* dfg/DFGJITCompiler.cpp:
(JSC::DFG::JITCompiler::exitSpeculativeWithOSR):
* dfg/DFGJITCompiler32_64.cpp:
(JSC::DFG::JITCompiler::exitSpeculativeWithOSR):
* dfg/DFGNode.h:
* dfg/DFGPropagator.cpp:
(JSC::DFG::Propagator::propagateNodePredictions):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* interpreter/CallFrame.cpp:
(JSC::CallFrame::trueCallerFrame):
* interpreter/CallFrame.h:
(JSC::ExecState::inlineCallFrame):
* interpreter/Register.h:
(JSC::Register::asInlineCallFrame):
(JSC::Register::unboxedInt32):
(JSC::Register::unboxedBoolean):
(JSC::Register::unboxedCell):
* runtime/Arguments.h:
(JSC::Arguments::finishCreationAndCopyRegisters):

LayoutTests: DFG inlining breaks function.arguments[something] if the argument being
retrieved was subjected to DFG's unboxing optimizations
https://bugs.webkit.org/show_bug.cgi?id=71436        

Reviewed by Oliver Hunt.

* fast/js/dfg-inline-arguments-int32-expected.txt: Added.
* fast/js/dfg-inline-arguments-int32.html: Added.
* fast/js/script-tests/dfg-inline-arguments-int32.js: Added.
(foo):
(bar):
(baz):
(argsToStr):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@99148 268f45cc-cd09-0410-ab3c-d52691b4dbfc