Fix a C++ PCH problem which was exposed by r113019. CXXBaseOrMemberInitializer's IsWritten and source order is not set.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113161 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/PCH/cxx-templates.cpp b/test/PCH/cxx-templates.cpp
index a862ea5..d36d544 100644
--- a/test/PCH/cxx-templates.cpp
+++ b/test/PCH/cxx-templates.cpp
@@ -30,6 +30,8 @@
   
   S3<int> s3;
   s3.m();
+
+  TS5 ts(0);
 }
 
 template struct S4<int>;