Array members converted to pointers when using alias template

Input C/C++ Header

template<int N>
using vec = double[N];

struct Thing {
	vec<3> position;
	vec<4> orientation;
	double diameter;
};

Bindgen Invocation

$ bindgen --no-layout-tests test.hpp

Actual Results

pub type vec = *mut f64;
#[repr(C)]
#[derive(Debug, Copy)]
pub struct Thing {
    pub position: vec,
    pub orientation: vec,
    pub diameter: f64,
}
impl Clone for Thing {
    fn clone(&self) -> Self { *self }
}

Expected Results

pub struct Thing {
    pub position: [f64; 3],
    pub orientation: [f64; 4],
    pub diameter: f64,
}

position and orientation are arrays of doubles. In the generated code, they are pointers.

Start by reproducing the issue with the provided test.hpp input and the bindgen --no-layout-tests invocation. Compare the generated Thing fields with the expected [f64; 3] and [f64; 4] arrays; done means alias-template array members are no longer emitted as pointers.