Use pack iteration (#494)

Author: muukii

Sources/VergeComparator/PackedCompare.swift

@@ -1,23 +1,11 @@
 
 @_spi(Internal)
 public func areEqual<each Element: Equatable>(_ lhs: (repeat each Element), _ rhs: (repeat each Element)) -> Bool {
-
-  // https://github.com/apple/swift-evolution/blob/main/proposals/0408-pack-iteration.md
-
-  func isEqual<T: Equatable>(_ left: T, _ right: T) throws {
-    if left == right {
-      return
-    }
-
-    throw NotEqual()
+  
+  for (left, right) in repeat (each lhs, each rhs) {
+    guard left == right else { return false }
   }
-
-  do {
-    repeat try isEqual(each lhs, each rhs)
-  } catch {
-    return false
-  }
-
   return true
+  
 }
 

Sources/VergeComparator/TypedComparator.swift

@@ -42,7 +42,12 @@ extension TypedComparator {
    */
   public static func equality<each T: Equatable>() -> Self where Self == AnyEqualityComparator<(repeat each T)> {
     return .init { a, b in
-      areEqual((repeat each a), (repeat each b))
+      
+      for (left, right) in repeat (each a, each b) {
+        guard left == right else { return false }
+      }
+      return true
+      
     }
   }