Added Traceable for PropertyDescriptor

[redfire75369]

No description provided.

[sagudev]

Relevant code in mozilla: https://searchfox.org/mozilla-central/source/js/src/gc/RootMarking.cpp#212

[jdm]

error[E0412]: cannot find type `JSVal` in this scope
   --> mozjs/src/gc/trace.rs:127:62
    |
127 |         CallValueTracer(trc, &self.value_ as *const _ as *mut Heap<JSVal>, c_str!("object"));
    |                                                                    ^^^^^ not found in this scope
    |
help: consider importing one of these items
    |
1   + use crate::jsval::JSVal;
    |
1   + use mozjs_sys::jsval::JSVal;
    |

[redfire75369]

The error on debug windows arm64 seems spurious? There's no error and seemingly a segfault in rustc?
Could you perhaps try rerunning the check?

[sagudev]

The error on debug windows arm64 seems spurious? There's no error and seemingly a segfault in rustc? Could you perhaps try rerunning the check?

I also managed to get this on main: https://github.com/servo/mozjs/actions/runs/7068898831

[redfire75369]

The most likely cause seems to be rust 1.74, although there's a chance its from the upgrade to VS 17.8.34316.

[sagudev]

I was diffing from last know working build and OS image and rust version is the same.

[redfire75369]

In that case, this certainly seems spurious.

[sagudev]

[sagudev]

Or maybe it is rust problem after all: rust-lang/rust#118462