julia

b43baa13 - use `src.nargs` for `validate_code!` (#58327)

use `src.nargs` for `validate_code!` (#58327) This is a follow-up to https://github.com/JuliaLang/julia/pull/54341. Otherwise, `validate_code!` may raise wrong errors for unmatched `nargs` information between generated code and original method.