Inference rules changed on 1.10 nightly

[crumblingstatue]

struct Foo;
struct Bar;

fn foo_ref_to_bar_ptr(foo: &Foo) -> *const Bar {
    foo as *const _ as _
}

This builds on 1.10 nightly, but inference fails on beta and stable.

If this is a desired change, it should probably be documented, and regression tests added.
If not, it should be made into an error.

[arielb1]

This is a desired change, and which I am quite sure has a regression test.

[nagisa]

Seems like something we want in relnotes, thus, in order to be on the safe side, adding the label.

[nagisa]

@arielb1 do you know which PR made the change?

[arielb1]

Found it - #32258

[nagisa]

Thanks @arielb1

[crumblingstatue]

@brson Is this really a regression? As far as I understand, it strictly allows more code to compile, and doesn't break old code.

The reason I opened this issue is because this seemed like an undocumented change.

[arielb1]

not a regression.