You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: type_pos.rs
    path of file: ./repos/rust-analyzer/crates/ide-completion/src/tests
    
    the code of the file until where you have to start completion: //! Completion tests for type position.
use expect_test::{expect, Expect};

use crate::tests::{check_empty, completion_list, BASE_ITEMS_FIXTURE};

    
fn tuple_struct_field() {
    check(
        r#"
struct Foo<'lt, T, const C: usize>(f$0);
"#,
        expect![[r#"
            en Enum       Enum
            ma makro!(…)  macro_rules! makro
            md module
            sp Self       Foo<'_, {unknown}, _>
            st Foo<…>     Foo<'_, {unknown}, _>
            st Record     Record
            st Tuple      Tuple
            st Unit       Unit
            tt Trait
            tp T
            un Union      Union
            bt u32        u32
            kw crate::
            kw pub
            kw pub(crate)
            kw pub(super)
            kw self::
        "#]],
    )
}