Only emit the section sym if we're emitting the section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189288 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 99ca037..c523972 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1929,7 +1929,8 @@
   emitSectionSym(Asm, TLOF.getDwarfLocSection());
   if (HasDwarfPubNames)
     emitSectionSym(Asm, TLOF.getDwarfPubNamesSection());
-  emitSectionSym(Asm, TLOF.getDwarfPubTypesSection());
+  if (useDarwinGDBCompat())
+    emitSectionSym(Asm, TLOF.getDwarfPubTypesSection());
   DwarfStrSectionSym =
     emitSectionSym(Asm, TLOF.getDwarfStrSection(), "info_string");
   if (useSplitDwarf()) {