Make AlwaysUseLiteralForEmptyArrayInit rule opt-in and disabled by default

Author: xedin

Sources/SwiftFormat/Core/RuleRegistry+Generated.swift

@@ -15,7 +15,7 @@
 @_spi(Internal) public enum RuleRegistry {
   public static let rules: [String: Bool] = [
     "AllPublicDeclarationsHaveDocumentation": false,
-    "AlwaysUseLiteralForEmptyArrayInit": true,
+    "AlwaysUseLiteralForEmptyArrayInit": false,
     "AlwaysUseLowerCamelCase": true,
     "AmbiguousTrailingClosureOverload": true,
     "BeginDocumentationCommentWithOneLineSummary": false,

Sources/SwiftFormat/Rules/AlwaysUseLiteralForEmptyArrayInit.swift

@@ -22,6 +22,8 @@ import SwiftParser
 /// Format: All invalid use sites would be related with empty literal (with or without explicit type annotation).
 @_spi(Rules)
 public final class AlwaysUseLiteralForEmptyArrayInit : SyntaxFormatRule {
+  public override class var isOptIn: Bool { return true }
+
   public override func visit(_ node: PatternBindingSyntax) -> PatternBindingSyntax {
     guard let initializer = node.initializer else {
       return node