Fix lower_acl_than_parent when linting with Swift 5

[jpsim]

Fixes #2607

[SwiftLintBot]

	12 Messages
📖	Linting Aerial with this PR took 2.01s vs 1.83s on master (9% slower)
📖	Linting Alamofire with this PR took 3.93s vs 3.54s on master (11% slower)
📖	Linting Firefox with this PR took 14.07s vs 12.54s on master (12% slower)
📖	Linting Kickstarter with this PR took 23.28s vs 20.7s on master (12% slower)
📖	Linting Moya with this PR took 2.32s vs 1.93s on master (20% slower)
📖	Linting Nimble with this PR took 2.36s vs 2.05s on master (15% slower)
📖	Linting Quick with this PR took 0.66s vs 0.6s on master (10% slower)
📖	Linting Realm with this PR took 3.75s vs 3.65s on master (2% slower)
📖	Linting SourceKitten with this PR took 1.35s vs 1.23s on master (9% slower)
📖	Linting Sourcery with this PR took 5.63s vs 4.77s on master (18% slower)
📖	Linting Swift with this PR took 29.95s vs 28.23s on master (6% slower)
📖	Linting WordPress with this PR took 23.46s vs 20.76s on master (13% slower)

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