Update Clang to reflect the new home of IRBuilder.h as of r159421.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159422 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGBuilder.h b/lib/CodeGen/CGBuilder.h
index 8120217..a790a74 100644
--- a/lib/CodeGen/CGBuilder.h
+++ b/lib/CodeGen/CGBuilder.h
@@ -10,7 +10,7 @@
 #ifndef CLANG_CODEGEN_CGBUILDER_H
 #define CLANG_CODEGEN_CGBUILDER_H
 
-#include "llvm/Support/IRBuilder.h"
+#include "llvm/IRBuilder.h"
 
 namespace clang {
 namespace CodeGen {