Apply a few minor fixes found while addressing the fellows PR for weights. #9455

Job	Run time
preflight / preflight	46s
preflight / ci-versions	57s
test-full-crypto-feature	2m 35s
cargo-check-benches (master)	20m 43s
cargo-check-benches (current)	22m 32s
cargo-check-each-crate (1)	18m 1s
test-frame-ui	26m 55s
cargo-check-each-crate (2)	18m 24s
cargo-check-each-crate (3)	6m 34s
cargo-check-each-crate (4)	16m 9s
test-node-metrics	10m 7s
cargo-check-all-crate-macos	11m 23s
cargo-check-each-crate (5)	24m 28s
cargo-check-each-crate (6)	13m 18s
cargo-check-each-crate (7)	27m 1s
test-frame-examples-compile-to-wasm	2m 58s
test-deterministic-wasm	6m 54s
check-tracing	2m 16s
check-metadata-hash	5m 53s
node-bench-regression-guard	14s
All test misc tests passed	1s
	3h 58m 9s

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