Stop bubbling out hidden types from the eval obligation queries r? `@compiler-errors` I don't know why these were added, but they are not needed anymore. The relevant test is unaffected and I didn't see anything interesting in logging that would have justified it. This PR has no effect on the new solver behaviour ofcf2dff2b1e/tests/ui/impl-trait/issue-99642.rs
(which is overflow) andcf2dff2b1e/tests/ui/impl-trait/issue-99642-2.rs
(which is "unstable certainty ICE")