/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/ is in llvm-3.9-dev 1:3.9.1-19ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFCompileUnit.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFContext.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugArangeSet.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugAranges.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugFrame.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugInfoEntry.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugLine.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugLoc.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugMacro.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFDebugRangeList.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFFormValue.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFRelocMap.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFSection.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFTypeUnit.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFUnit.h
/usr/include/llvm-3.9/llvm/DebugInfo/DWARF/DWARFUnitIndex.h