ICU-13390 include unicode/utf16.h when using U16_ macros

X-SVN-Rev: 40577

diff --git a/icu4c/source/test/intltest/tzfmttst.cpp b/icu4c/source/test/intltest/tzfmttst.cpp
index 1b1cd7e8f0558e4923ab2b51991d862384220f95..25a9aaa7fc10b5166d34c1a13912fd926b20644a 100644 (file)
--- a/icu4c/source/test/intltest/tzfmttst.cpp
+++ b/icu4c/source/test/intltest/tzfmttst.cpp
@@ -21,6 +21,7 @@
 #include "unicode/basictz.h"
 #include "unicode/tzfmt.h"
 #include "unicode/localpointer.h"
+#include "unicode/utf16.h"
 
 #include "cstring.h"
 #include "cstr.h"