lower_acl_than_parent not safe

[paulo-bc]

New Issue Checklist

• Updated SwiftLint to the latest version
• I searched for existing GitHub issues

Describe the bug

Applying lower_acl_than_parent to provided sample code breaks it.

Complete output when running SwiftLint, including the stack trace and command used

$ swiftlint lint
Linting Swift files in current working directory
Linting 'Example.swift' (1/1)
/path/Example.swift:3:5: warning: Lower ACL than Parent Violation: Ensure declarations have a lower access control level than their enclosing parent (lower_acl_than_parent)
Done linting! Found 1 violation, 0 serious in 1 file.

Environment

• SwiftLint version (run swiftlint version to be sure)? 0.51.0
• Installation method used (Homebrew, CocoaPods, building from source, etc)? homebrew
• Paste your configuration file:

only_rules:
- lower_acl_than_parent

• Are you using nested configurations? No.
• Which Xcode version are you using (check xcodebuild -version)? Xcode 14.3 Build version 14E222b
• Do you have a sample that shows the issue?

struct Example { 
    let content: String
    public init(content: String) {}
}

is corrected to:

struct Example { 
    let content: Stringinit(content: String) {}
}

[paulo-bc]

An even simpler example

struct Example {
    public init() {}
}

gets corrected to

struct Example {init() {}
}