Revert PR "Rework some predicates_of/{Generic,Instantiated}Predicates…

[compiler-errors]

Reverts #106395
r? @ghost

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Revert "Remove bound_{explicit,}_item_bounds"

This reverts commit 90df86f.

Revert "drive-by: assert when iterating through InstantiatedPredicates"

This reverts commit e1533a2.

Revert "Make InstantiatedPredicates impl IntoIterator"

This reverts commit 9b28edb.

Revert "instantiate_own doesn't need to return a pair of vectors"

This reverts commit 91fd862.

[compiler-errors]

@bors try @rust-timer queue

[bors]

⌛ Trying commit d0c877b with merge ed754dfa2bae04c79d17fa520184153050da7798...

[bors]

☀️ Try build successful - checks-actions
Build commit: ed754dfa2bae04c79d17fa520184153050da7798 (ed754dfa2bae04c79d17fa520184153050da7798)

[rust-timer]

Finished benchmarking commit (ed754dfa2bae04c79d17fa520184153050da7798): comparison URL.

Overall result: no relevant changes - no action needed

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	4.6%	[3.2%, 6.5%]	3
Improvements ✅ (primary)	-1.6%	[-2.1%, -1.2%]	2
Improvements ✅ (secondary)	-4.0%	[-5.8%, -2.2%]	2
All ❌✅ (primary)	-1.6%	[-2.1%, -1.2%]	2

Cycles

This benchmark run did not return any relevant results for this metric.