Remove unnecessary temporary construction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194981 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 14cf245..db77a3f 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1247,7 +1247,7 @@
       addFlag(&Buffer, dwarf::DW_AT_APPLE_block);
 
     DICompositeType ContainingType(resolve(CTy.getContainingType()));
-    if (DIDescriptor(ContainingType).isCompositeType())
+    if (ContainingType.isCompositeType())
       addDIEEntry(&Buffer, dwarf::DW_AT_containing_type,
                   getOrCreateTypeDIE(DIType(ContainingType)));