Introduce UnorderedComparingArray

Author: dfed

Sources/SafeDICore/Models/TypeDescription.swift

@@ -73,8 +73,6 @@ public enum TypeDescription: Codable, Hashable, Comparable, Sendable {
         case let .composition(types):
             return types
                 .map { $0.asSource }
-                // Sort the result to ensure stable code generation.
-                .sorted()
                 .joined(separator: " & ")
         case let .optional(type):
             return "\(type.asSource)?"

Tests/SafeDICoreTests/TypeDescriptionTests.swift

@@ -104,9 +104,7 @@ final class TypeDescriptionTests: XCTestCase {
         XCTAssertFalse(typeDescription.isUnknown, "Type description is not of known type!")
         XCTAssertEqual(
             typeDescription.asSource,
-            // Composition elements are sorted when creating source code in order to
-            // ensure stable code generation, since composition ordering is arbitrary.
-            "Bar & Foo"
+            "Foo & Bar"
         )
     }