Update wrapAttributes "complex attributes" logic to exclude attributes with a single unnamed argument

[calda]

This PR updates the wrapAttributes "complex attributes" logic to exclude attributes with a single unnamed argument.

This removes the need to special-case the @Environment attribute, which we specifically don't want to consider "complex". Since this doesn't require special casing any particular attribute, it generalizes to other similar attributes like @AppStorage from SwiftUI and @Dependency from TCA.

These are no longer considered complex, so can be configured to not wrap using --storedvarattrs same-line:

@Environment(\.controlPanelStyle) private var controlPanelStyle
@Dependency(\.controlsService) private var controlsService
@AppStorage("ControlsConfig") private var controlsConfig: ControlConfiguration

These examples are all still considered complex, so can be configured to always wrap using --complexattrs prev-line:

@AppStorage("ControlsConfig", store: myCustomUserDefaults)
private var controlsConfig: ControlConfiguration

@Tweak(name: "Aspect ratio")
private var aspectRatio = AspectRatio.stretch

@available(*, unavailable)
var saturn5Builder: Saturn5Builder

@available(*, unavailable, message: "No longer in production")
var saturn5Builder: Saturn5Builder

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a73bd38) 95.07% compared to head (1da8235) 95.07%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1595      +/-   ##
===========================================
- Coverage    95.07%   95.07%   -0.01%     
===========================================
  Files           20       20              
  Lines        22084    22112      +28     
===========================================
+ Hits         20996    21022      +26     
- Misses        1088     1090       +2     

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[calda]

We no longer have a use case for this option, so we could remove it if we want. It seems like somebody could find this useful though, so it may be worth keeping.

[bachand]

👍