Regenerate sources

Author: DougGregor

Sources/SwiftParser/generated/ExperimentalFeatures.swift

@@ -48,9 +48,6 @@ extension Parser.ExperimentalFeatures {
   /// Whether to enable the parsing of @abi attribute.
   public static let abiAttribute = Self (rawValue: 1 << 7)
 
-  /// Whether to enable the parsing of 'unsafe' expression.
-  public static let unsafeExpression = Self (rawValue: 1 << 8)
-
   /// Creates a new value representing the experimental feature with the
   /// given name, or returns nil if the name is not recognized.
   public init?(name: String) {
@@ -71,8 +68,6 @@ extension Parser.ExperimentalFeatures {
       self = .valueGenerics
     case "ABIAttribute":
       self = .abiAttribute
-    case "WarnUnsafe":
-      self = .unsafeExpression
     default:
       return nil
     }