clang side to match the LLVM IR type system rewrite patch.

llvm-svn: 134831
diff --git a/clang/lib/CodeGen/CGCXXABI.cpp b/clang/lib/CodeGen/CGCXXABI.cpp
index 92f1c63..dcc28b4 100644
--- a/clang/lib/CodeGen/CGCXXABI.cpp
+++ b/clang/lib/CodeGen/CGCXXABI.cpp
@@ -34,7 +34,7 @@
   return llvm::Constant::getNullValue(CGM.getTypes().ConvertType(T));
 }
 
-const llvm::Type *
+llvm::Type *
 CGCXXABI::ConvertMemberPointerType(const MemberPointerType *MPT) {
   return CGM.getTypes().ConvertType(CGM.getContext().getPointerDiffType());
 }