This will be used to output the debug info version number as a module flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195494
91177308-0d34-0410-b5e6-
96231b3b80d8
DW_TAG_user_base = 0x1000, // Recommended base for user tags.
DWARF_VERSION = 4, // Default dwarf version we output.
+ DEBUG_INFO_VERSION = 1, // Current debug info version number.
DW_CIE_VERSION = 1, // Common frame information version.
DW_PUBTYPES_VERSION = 2, // Section version number for .debug_pubtypes.
DW_PUBNAMES_VERSION = 2, // Section version number for .debug_pubnames.