type_traits (__make_unsigned_selector<>): Consider enums of size smaller than short.
* include/std/type_traits (__make_unsigned_selector<>): Consider
enums of size smaller than short.
(__make_signed_selector<>): Likewise.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
Adjust line numbers.
* testsuite/20_util/make_usigned/requirements/typedefs_neg.cc:
Adjust line numbers.
* testsuite/20_util/make_signed/requirements/typedefs-2.cc:
Ensure test_enum is the same size as short.
* testsuite/20_util/make_unsigned/requirements/typedefs-2.cc:
Ensure test_enum is the same size as short.
From-SVN: r139875