Update CMake

llvm-svn: 76351
diff --git a/clang/lib/AST/CMakeLists.txt b/clang/lib/AST/CMakeLists.txt
index 35ba607..f9239ed 100644
--- a/clang/lib/AST/CMakeLists.txt
+++ b/clang/lib/AST/CMakeLists.txt
@@ -18,6 +18,7 @@
   InheritViz.cpp
   NestedNameSpecifier.cpp
   ParentMap.cpp
+  RecordLayoutBuilder.cpp
   Stmt.cpp
   StmtDumper.cpp
   StmtIterator.cpp