Fix "'retroactive' attribute does not apply here" error when using Xcode 16 RC

[liamnichols]

[github-actions]

✅ Pull Request passed benchmark checks

Summary

Mon Sep 16 10:31:16 UTC 2024

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Threshold deviations for StringGenerator.generateSource(for:tableName:accessLevel:):XCStringsToolBenchmarks
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Time (total CPU) (ms, %)	main	pull_request	Difference %	Threshold %
p25	357	304	-14	5
p50	357	304	-14	5
p75	359	306	-14	5

New baseline 'pull_request' is BETTER than the 'main' baseline thresholds.

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Comparing results between 'main' and 'pull_request'

Host 'Mac-1726481009307.local' with 3 'arm64' processors with 7 GB memory, running:
Darwin Kernel Version 23.6.0: Mon Jul 29 21:13:03 PDT 2024; root:xnu-10063.141.2~1/RELEASE_ARM64_VMAPPLE

XCStringsToolBenchmarks

StringGenerator.generateSource(for:tableName:accessLevel:) metrics

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ms) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	356	357	357	359	359	359	359	3
pull_request	304	304	304	306	307	307	307	4
Δ	-52	-53	-53	-53	-52	-52	-52	1
Improvement %	15	15	15	15	14	14	14	1