* gdb.base/whatis.c (v_long_long, v_signed_long_long)
(v_unsigned_long_long, v_long_long_array)
(v_signed_long_long_array, v_unsigned_long_long_array)
(slong_long_addr, a_slong_long_addr, v_long_long_pointer)
(v_signed_long_long_pointer, v_unsigned_long_long_pointer)
[!NO_LONG_LONG]: New.
(t_struct, v_struct2, t_union, v_union2) [!NO_LONG_LONG]: Add
v_long_long_member.
(v_long_long_func, v_signed_long_long_func)
(v_unsigned_long_long_func) [!NO_LONG_LONG]: New.
(main) [!NO_LONG_LONG]: Initialize long long variants.
* gdb.base/whatis.exp: If board file requests no_long_long, build
test with NO_LONG_LONG defined. Test long long, signed long long,
and unsigned long long variants but only if board file doesn't
disable it.
* gdb.base/whatis.c: Define variables using typedefs char_addr,
ushort_addr, and slong_addr, so the typedefs are not optimized
away.
* gdb.base/whatis.exp: Add tests using type name for struct type,
union type, enum type, and typedef.
