Filter returns the wrong result with unsigned type values

[RonyK]

The filter operator has an error with unsigned values.
Current code casts any type of values to 'int64_t', and the derived type Ty_ is just ignored.

For example, here is the code from <parse/term.h>

template <typename Ty_>
bool evaluateEqual(const int64_t v1, const int64_t v2)
{
    return v1 == v2;
}

In this type-casting, an unsigned value might be converted to a negative value.
(e.g., unsigned char: 129 -> signed char: -127)
Accordingly, the relational operators (or comparison operators) misunderstand the value and work differently from our expectations.

The code should be changed, such as

template <typename TyLeft_, typename TyRight_>
bool evaluateEqual(const TyLeft_ v1, const TyRight_ v2)
{
    return v1 == v2;
}