tests/fixtures/hover/src/test_extract_decl.rs

pub fn foo() -> Foo<u32> {
    Foo { t: 1 }
}

#[derive(Debug)]
pub struct Foo<T> {
    pub t: T
}

#[derive(Debug)]
pub enum Bar {
    Baz
}

#[derive(Debug)]
pub struct NewType(pub u32, f32);

impl NewType {
    pub fn new() -> NewType {
        NewType(1, 2.0)
    }

    pub fn bar<T: Copy + Add>(&self, the_really_long_name_string: String, the_really_long_name_foo: Foo<T>) -> Vec<(String, Foo<T>)> {
        Vec::default()
    }
}

pub trait Baz<T> where T: Copy { 
    fn make_copy(&self) -> Self;
}

impl<T> Baz<T> for Foo<T> where T: Copy {
    fn make_copy(&self) -> Self {
        Foo { t: self.t }
    }
}

pub trait Qeh<T, U>
where T: Copy, 
U: Clone {
    
}

pub fn multiple_lines(
    s: String,
    i: i32
) {
    drop(s);
    drop(i);
}

pub fn bar() -> Bar {
    Bar::Baz
}