return void cases

[4n70w4]

Compile Error: Scalar type declaration 'void' must be unqualified

because generated excess \ in enhanced proxy class

public function setHashForUser($user): \void for origin method:
public function setHashForUser($user) : void {

Okay, I manually remove \ but exception again:

Compile Error: A void function must not return a value

because gererated code return $invocation->proceed(); incorrect for void functions.

Need remove return operator.

[4n70w4]

Oh, this for https://github.com/schmittjoh/cg-library
related: schmittjoh/cg-library#35