Merge from mainline.

Set appropriate tag for the composite type.

llvm-svn: 63202

Author: tlattner

llvm/lib/CodeGen/AsmPrinter/DwarfWriter.cpp

@@ -1747,6 +1747,7 @@ class DwarfDebug : public Dwarf {
     const std::string &Name = CTy.getName();
     uint64_t Size = CTy.getSizeInBits() >> 3;
     unsigned Tag = CTy.getTag();
+    Buffer.setTag(Tag);
     switch (Tag) {
     case DW_TAG_vector_type:
     case DW_TAG_array_type: