clang/lib/Parse/CMakeLists.txt: Fixup corresponding to r193989. ClangAttrTypeArg is required here.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193991 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/CMakeLists.txt b/lib/Parse/CMakeLists.txt
index 842f191..08bf4e1 100644
--- a/lib/Parse/CMakeLists.txt
+++ b/lib/Parse/CMakeLists.txt
@@ -21,6 +21,7 @@
   ClangAttrLateParsed
   ClangAttrList
   ClangAttrParsedAttrList
+  ClangAttrTypeArg
   ClangCommentNodes
   ClangDeclNodes
   ClangDiagnosticCommon