Added include for <cassert>

llvm-svn: 317722
diff --git a/libcxx/fuzzing/fuzzing.cpp b/libcxx/fuzzing/fuzzing.cpp
index cc09dd5..9471a1d 100644
--- a/libcxx/fuzzing/fuzzing.cpp
+++ b/libcxx/fuzzing/fuzzing.cpp
@@ -28,6 +28,7 @@
 #include <algorithm>
 #include <functional>
 #include <regex>
+#include <cassert>
 
 #include <iostream>