`InferCtxt::region_constraints_added_in_snapshot` ignores type outlives obligations

[aliemjay]

This function should also consider region obligations added in InferCtxtInner::region_obligations

rust/compiler/rustc_infer/src/infer/mod.rs

Lines 920 to 927 in 3340d49

	/// Scan the constraints produced since `snapshot` and check whether
	/// we added any region constraints.
	pub fn region_constraints_added_in_snapshot(&self, snapshot: &CombinedSnapshot<'tcx>) -> bool {
	self.inner
	.borrow_mut()
	.unwrap_region_constraints()
	.region_constraints_added_in_snapshot(&snapshot.undo_snapshot)
	}