False positive in unneeded_synthesized_initializer

[ZevEisenberg]

New Issue Checklist

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

Describe the bug

unneeded_synthesized_initializer reports a false positive when the init has side effects. In the attached sample, the init prints something, and removing it would remove the print. In the example where I encountered it in a real app, a SwiftUI view modifier's init contained a call to UIScrollView.appearance().bounces = false, which we definitely don't want to lose by deleting the init!

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

$ swiftlint lint
Linting Swift files in current working directory
Linting 'InitTest.swift' (1/1)
/Users/igeek/Downloads/InitTest/InitTest.swift:2:5: warning: Unneeded Synthesized Initializer Violation: This default initializer would be synthesized automatically - you do not need to define it (unneeded_synthesized_initializer)
Done linting! Found 1 violation, 0 serious in 1 file.

Environment

• SwiftLint version: 0.52.3
• Installation method used: homebrew
• Paste your configuration file: n/a (default configuration)
• Are you using nested configurations? No
• Which Xcode version are you using? Xcode 14.3.1 (14E300c) on macOS 13.4.1 (22F82)
• Do you have a sample that shows the issue? Run echo "[string here]" | swiftlint lint --no-cache --use-stdin --enable-all-rules
  to quickly test if your example is really demonstrating the issue. If your example is more
  complex, you can use swiftlint lint --path [file here] --no-cache --enable-all-rules.

struct MyStruct {
    init() {
        print("perform side effect")
    }
}

[mildm8nnered]

interesting - taking a look shortly

[ZevEisenberg]

Quick work! Thank you @mildm8nnered!