Add section information for the DWARF5 split debug proposal
string offset section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp
index d57e0c5..d73b9b1 100644
--- a/lib/MC/MCObjectFileInfo.cpp
+++ b/lib/MC/MCObjectFileInfo.cpp
@@ -426,6 +426,9 @@
   DwarfLocDWOSection =
     Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0,
                        SectionKind::getMetadata());
+  DwarfStrOffDWOSection =
+    Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0,
+                       SectionKind::getMetadata());
 }