Removes redundant buffer zeroing in IndexPath

Author: valeriyvan

Sources/Foundation/IndexPath.swift

@@ -641,9 +641,9 @@ public struct IndexPath : ReferenceConvertible, Equatable, Hashable, MutableColl
         } else if count == 2 {
             _indexes = .pair(nsIndexPath.index(atPosition: 0), nsIndexPath.index(atPosition: 1))
         } else {
-            var indexes = Array<Int>(repeating: 0, count: count)
-            indexes.withUnsafeMutableBufferPointer { (buffer: inout UnsafeMutableBufferPointer<Int>) -> Void in
-                nsIndexPath.getIndexes(buffer.baseAddress!, range: NSRange(location: 0, length: count))
+            let indexes = Array<Int>(unsafeUninitializedCapacity: count) { buf, initializedCount in
+                nsIndexPath.getIndexes(buf.baseAddress!, range: NSRange(location: 0, length: count))
+                initializedCount = count
             }
             _indexes = .array(indexes)
         }