Fix the Linux build: add a missing #include

gribozavr · gribozavr · commit 0f11d9241c3f · 2015-12-30T00:16:13.000-07:00
diff --git a/include/swift/Basic/PointerIntEnum.h b/include/swift/Basic/PointerIntEnum.h
@@ -16,6 +16,7 @@
 #include <cstdlib>
 #include <cstring>
 #include <type_traits>
+#include <utility>
 
 namespace swift {
 
