/usr/lib/llvm-3.6/include/lldb/Target/ is in liblldb-3.6-dev 1:3.6.2-3ubuntu2.
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..
/usr/lib/llvm-3.6/include/lldb/Target/ABI.h
/usr/lib/llvm-3.6/include/lldb/Target/CPPLanguageRuntime.h
/usr/lib/llvm-3.6/include/lldb/Target/DynamicLoader.h
/usr/lib/llvm-3.6/include/lldb/Target/ExecutionContext.h
/usr/lib/llvm-3.6/include/lldb/Target/ExecutionContextScope.h
/usr/lib/llvm-3.6/include/lldb/Target/FileAction.h
/usr/lib/llvm-3.6/include/lldb/Target/InstrumentationRuntime.h
/usr/lib/llvm-3.6/include/lldb/Target/InstrumentationRuntimeStopInfo.h
/usr/lib/llvm-3.6/include/lldb/Target/JITLoader.h
/usr/lib/llvm-3.6/include/lldb/Target/JITLoaderList.h
/usr/lib/llvm-3.6/include/lldb/Target/LanguageRuntime.h
/usr/lib/llvm-3.6/include/lldb/Target/Memory.h
/usr/lib/llvm-3.6/include/lldb/Target/MemoryHistory.h
/usr/lib/llvm-3.6/include/lldb/Target/MemoryRegionInfo.h
/usr/lib/llvm-3.6/include/lldb/Target/NativeRegisterContext.h
/usr/lib/llvm-3.6/include/lldb/Target/NativeRegisterContextRegisterInfo.h
/usr/lib/llvm-3.6/include/lldb/Target/ObjCLanguageRuntime.h
/usr/lib/llvm-3.6/include/lldb/Target/OperatingSystem.h
/usr/lib/llvm-3.6/include/lldb/Target/PathMappingList.h
/usr/lib/llvm-3.6/include/lldb/Target/Platform.h
/usr/lib/llvm-3.6/include/lldb/Target/Process.h
/usr/lib/llvm-3.6/include/lldb/Target/ProcessInfo.h
/usr/lib/llvm-3.6/include/lldb/Target/ProcessLaunchInfo.h
/usr/lib/llvm-3.6/include/lldb/Target/Queue.h
/usr/lib/llvm-3.6/include/lldb/Target/QueueItem.h
/usr/lib/llvm-3.6/include/lldb/Target/QueueList.h
/usr/lib/llvm-3.6/include/lldb/Target/RegisterCheckpoint.h
/usr/lib/llvm-3.6/include/lldb/Target/RegisterContext.h
/usr/lib/llvm-3.6/include/lldb/Target/SectionLoadHistory.h
/usr/lib/llvm-3.6/include/lldb/Target/SectionLoadList.h
/usr/lib/llvm-3.6/include/lldb/Target/StackFrame.h
/usr/lib/llvm-3.6/include/lldb/Target/StackFrameList.h
/usr/lib/llvm-3.6/include/lldb/Target/StackID.h
/usr/lib/llvm-3.6/include/lldb/Target/StopInfo.h
/usr/lib/llvm-3.6/include/lldb/Target/SystemRuntime.h
/usr/lib/llvm-3.6/include/lldb/Target/Target.h
/usr/lib/llvm-3.6/include/lldb/Target/TargetList.h
/usr/lib/llvm-3.6/include/lldb/Target/Thread.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadCollection.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadList.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlan.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanBase.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanCallFunction.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanCallUserExpression.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanPython.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanRunToAddress.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanShouldStopHere.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepInRange.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepInstruction.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepOut.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepOverBreakpoint.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepOverRange.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepRange.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepThrough.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanStepUntil.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadPlanTracer.h
/usr/lib/llvm-3.6/include/lldb/Target/ThreadSpec.h
/usr/lib/llvm-3.6/include/lldb/Target/UnixSignals.h
/usr/lib/llvm-3.6/include/lldb/Target/Unwind.h
/usr/lib/llvm-3.6/include/lldb/Target/UnwindAssembly.h