Implement a JIT-code aware sampling profiler for JSC

Implement a JIT-code aware sampling profiler for JSC
https://bugs.webkit.org/show_bug.cgi?id=76855

Rubber stanmped by Geoff Garen.

Mechanical change - pass CodeBlock through to the executable allocator,
such that we will be able to map ranges of JIT code back to their owner.

* assembler/ARMAssembler.cpp:
(JSC::ARMAssembler::executableCopy):
* assembler/ARMAssembler.h:
* assembler/AssemblerBuffer.h:
(JSC::AssemblerBuffer::executableCopy):
* assembler/AssemblerBufferWithConstantPool.h:
(JSC::AssemblerBufferWithConstantPool::executableCopy):
* assembler/LinkBuffer.h:
(JSC::LinkBuffer::LinkBuffer):
(JSC::LinkBuffer::linkCode):
* assembler/MIPSAssembler.h:
(JSC::MIPSAssembler::executableCopy):
* assembler/SH4Assembler.h:
(JSC::SH4Assembler::executableCopy):
* assembler/X86Assembler.h:
(JSC::X86Assembler::executableCopy):
(JSC::X86Assembler::X86InstructionFormatter::executableCopy):
* dfg/DFGJITCompiler.cpp:
(JSC::DFG::JITCompiler::compile):
(JSC::DFG::JITCompiler::compileFunction):
* dfg/DFGOSRExitCompiler.cpp:
* dfg/DFGRepatch.cpp:
(JSC::DFG::generateProtoChainAccessStub):
(JSC::DFG::tryCacheGetByID):
(JSC::DFG::tryBuildGetByIDList):
(JSC::DFG::tryCachePutByID):
* dfg/DFGThunks.cpp:
(JSC::DFG::osrExitGenerationThunkGenerator):
* jit/ExecutableAllocator.cpp:
(JSC::ExecutableAllocator::allocate):
* jit/ExecutableAllocator.h:
* jit/ExecutableAllocatorFixedVMPool.cpp:
(JSC::ExecutableAllocator::allocate):
* jit/JIT.cpp:
(JSC::JIT::privateCompile):
* jit/JITOpcodes.cpp:
(JSC::JIT::privateCompileCTIMachineTrampolines):
* jit/JITOpcodes32_64.cpp:
(JSC::JIT::privateCompileCTIMachineTrampolines):
(JSC::JIT::privateCompileCTINativeCall):
* jit/JITPropertyAccess.cpp:
(JSC::JIT::stringGetByValStubGenerator):
(JSC::JIT::privateCompilePutByIdTransition):
(JSC::JIT::privateCompilePatchGetArrayLength):
(JSC::JIT::privateCompileGetByIdProto):
(JSC::JIT::privateCompileGetByIdSelfList):
(JSC::JIT::privateCompileGetByIdProtoList):
(JSC::JIT::privateCompileGetByIdChainList):
(JSC::JIT::privateCompileGetByIdChain):
* jit/JITPropertyAccess32_64.cpp:
(JSC::JIT::stringGetByValStubGenerator):
(JSC::JIT::privateCompilePutByIdTransition):
(JSC::JIT::privateCompilePatchGetArrayLength):
(JSC::JIT::privateCompileGetByIdProto):
(JSC::JIT::privateCompileGetByIdSelfList):
(JSC::JIT::privateCompileGetByIdProtoList):
(JSC::JIT::privateCompileGetByIdChainList):
(JSC::JIT::privateCompileGetByIdChain):
* jit/JITStubs.cpp:
* jit/SpecializedThunkJIT.h:
(JSC::SpecializedThunkJIT::finalize):
* yarr/YarrJIT.cpp:
(JSC::Yarr::YarrGenerator::compile):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105636 268f45cc-cd09-0410-ab3c-d52691b4dbfc