Auto merge of #154053 - khyperia:generalize-unevaluated, r=BoxyUwU

Properly generalize unevaluated consts



- fixes rust-lang/rust#153831
- fixes a `// FIXME(ogca)` (I am unaware of an issue for this) added in rust-lang/rust#150823

r? @BoxyUwU

Author: bors