DWARF: Print line tables per compile unit, so they get the right address size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139808 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/DebugInfo/DWARFCompileUnit.h b/lib/DebugInfo/DWARFCompileUnit.h
index 378b6ce..d916729 100644
--- a/lib/DebugInfo/DWARFCompileUnit.h
+++ b/lib/DebugInfo/DWARFCompileUnit.h
@@ -70,6 +70,14 @@
     BaseAddr = base_addr;
   }
 
+  const DWARFDebugInfoEntryMinimal *
+  getCompileUnitDIE(bool extract_cu_die_only = true) {
+    extractDIEsIfNeeded(extract_cu_die_only);
+    if (DieArray.empty())
+      return NULL;
+    return &DieArray[0];
+  }
+
   /// setDIERelations - We read in all of the DIE entries into our flat list
   /// of DIE entries and now we need to go back through all of them and set the
   /// parent, sibling and child pointers for quick DIE navigation.