Auto merge of #130561 - lukas-code:perf-normalize-env, r=compiler-errors

[perf] skip normalizing param env if it is already normalized

If the param env is already normalized after elaboration, then we can skip a bunch of expensive operations.

> [!note]
> This makes it so that outlives predicates are no longer sorted after non-outlives predicates. Surely this won't make a semantic difference.

r? ghost