[5.0.0-dev] Fix action wrappers and call wrappers compile failures if their first argument is bool

[linh2931]

Change Description

Fix the problem of action wrappers and call wrappers compile failures if their first argument is bool, and add tests for it.

For example, a call wrapper like

[[eosio::call]]
bool bool_ret_bool_arg(bool b) { return b; };
using bool_ret_bool_arg_func = eosio::call_wrapper<"bool_ret_bool_arg"_i, &sync_call_callee::bool_ret_bool_arg>;

CDT will fail the compile with

.../build/bin/../include/eosiolib/contracts/eosio/detail.hpp:71:29: error: ambiguous partial specializations of 'is_same<bool, bool>'
      static_assert(detail::is_same<typename convert<T>::type, typename convert<typename std::tuple_element<I, deduced<Function>>::type>::type>::value);
                            ^
.../build/bin/../include/eosiolib/contracts/eosio/detail.hpp:79:17: note: in instantiation of template class 'eosio::detail::check_types<&sync_call_callee::void_ret_bool_arg, 0, bool>' requested here
         return check_types<Function, 0, Ts...>::value;
                ^
.../build/bin/../include/eosiolib/contracts/eosio/call.hpp:115:32: note: in instantiation of function template specialization 'eosio::detail::type_check<&sync_call_callee::void_ret_bool_arg, bool>' requested here
         static_assert(detail::type_check<Func_Ref, Args...>());
                               ^
.../tests/unit/test_contracts/sync_call_caller.cpp:195:61: note: in instantiation of function template specialization 'eosio::call_wrapper<15588028823843593861, &sync_call_callee::void_ret_bool_arg, eosio::access_mode::read_write, eosio::support_mode::abort_op>::operator()<bool>' requested here
      sync_call_callee::void_ret_bool_arg_func{ "callee"_n }(true);
                                                            ^
.../build/bin/../include/eosiolib/contracts/eosio/detail.hpp:44:11: note: partial specialization matches [with U = bool]
   struct is_same<bool,U> { static constexpr bool value = std::is_integral<U>::value; };
          ^
.../build/bin/../include/eosiolib/contracts/eosio/detail.hpp:47:11: note: partial specialization matches [with T = bool]
   struct is_same<T,bool> { static constexpr bool value = std::is_integral<T>::value; };

The problem is due to partial specialization for bool type.

Resolves #370

API Changes

• API Changes

Documentation Additions

• Documentation Additions