Associated constant defined via another associated constant cannot be compiled if used in entry functions

[ironcev]

If an associated constant is defined via another associated constant and used in entry functions (main, contract functions) compiler will emit an error that it cannot be initialized. E.g.:

script;

struct S {}

impl S {
    const S_A: u8 = 11;
    const S_B: u8 = Self::S_A;  // <<<--- S_B defined via S_A.
    // ERROR:             ^^^ Could not evaluate initializer to a const declaration.
}

fn main() {
    let _ = S::S_B; // <<<--- S_B used in main().
    // If we comment out the above line, the code compiles.
}

When fixing this issue, adjust the associated_const_in_decls_of_other_constants test which is linked to this issue via GitHub link in the test TODO.