MutableHandle::new should be pub(crate)

[gterzian]

mozjs/mozjs/src/gc/root.rs

Line 123 in 0081fc4

pub(crate) fn new(ptr: &'a T) -> Self {

is private to this crate, but

mozjs/mozjs/src/gc/root.rs

Line 177 in 0081fc4

pub fn new(ptr: &'a mut T) -> Self {

is not. I assume both should be private to this crate(In both cases one should not directly call new, but rather use set on a newly rooted undefined value?).

[jdm]

Yep, that looks like the right fix to me.