add .args to compile time method about v HOT 4 OPEN

fn register[T]() {
	$for method in T.methods {
		args := method.args
		for arg in args {
			match arg.typ {
				typeof[f32]().idx {
					println('arg [${arg.name}] is f32')
				}
				else {}
			}
		}
	}
}

module main

struct Struct1 {
	num f64
}

fn (mut s Struct1) do_thing(a f32) bool {
	return false
}

fn register[T](){
	$for method in T.methods {
		$for arg in method.args {
			println("${arg.name}")
		}
	}
}

pub fn main() {
	register[Struct1]()
}