Implemnt is_some_and()

[tetsuharuohzeki]

• https://doc.rust-lang.org/std/option/enum.Option.html#method.is_some_and
• https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_ok_and
• https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_err_and

TODO

• Implement is_some_and() operator for Maybe
• Implement is_some_and() operator for Nullable
• Implement is_some_and() operator for Undefinable
• Implement is_some_and() operator for PlainOption #1602
• Implement is_ok_and()/is_err_and() for PlainResult #1335

[tetsuharuohzeki]

We should need to implement a type guard function signature when we implement this.