change var to let

Author: Gumichocopengin8

stdlib/public/Darwin/Foundation/AffineTransform.swift

@@ -275,15 +275,6 @@ public struct AffineTransform : ReferenceConvertible, Hashable, CustomStringConv
         newSize.height = (m12 * size.width) + (m22 * size.height)
         return newSize
     }
-
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(m11)
-        hasher.combine(m12)
-        hasher.combine(m21)
-        hasher.combine(m22)
-        hasher.combine(tX)
-        hasher.combine(tY)
-    }
 
     public var hashValue : Int {
         return Int(m11 + m12 + m21 + m22 + tX + tY)

stdlib/public/Darwin/Foundation/Calendar.swift

@@ -899,10 +899,6 @@ public struct Calendar : Hashable, Equatable, ReferenceConvertible, _MutableBoxi
 
     // MARK: -
 
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(_handle.map { $0 })
-    }
-
     public var hashValue : Int {
         // We implement hash ourselves, because we need to make sure autoupdating calendars have the same hash
         if _autoupdating {

stdlib/public/Darwin/Foundation/Date.swift

@@ -141,10 +141,6 @@ public struct Date : ReferenceConvertible, Comparable, Equatable {
     The distant past is in terms of centuries.
     */
     public static let distantPast = Date(timeIntervalSinceReferenceDate: -63114076800.0)
-
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(_time)
-    }
 
     public var hashValue: Int {
         if #available(macOS 10.12, iOS 10.0, *) {

stdlib/public/Darwin/Foundation/DateComponents.swift

@@ -262,10 +262,6 @@ public struct DateComponents : ReferenceConvertible, Hashable, Equatable, _Mutab
     }
 
     // MARK: -
-
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(_handle.map { $0 })
-    }
 
     public var hashValue : Int {
         return _handle.map { $0.hash }

stdlib/public/Darwin/Foundation/DateInterval.swift

@@ -155,10 +155,6 @@ public struct DateInterval : ReferenceConvertible, Comparable, Hashable, Codable
         return false
     }
 
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(start)
-    }
-
     public var hashValue: Int {
         var buf: (UInt, UInt) = (UInt(start.timeIntervalSinceReferenceDate), UInt(end.timeIntervalSinceReferenceDate))
         return withUnsafeMutablePointer(to: &buf) {

stdlib/public/Darwin/Foundation/Decimal.swift

@@ -177,10 +177,6 @@ extension Decimal : Hashable, Comparable {
         return _isNegative != 0 ? -d : d
     }
 
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(doubleValue)
-    }
-
     public var hashValue: Int {
         return Int(bitPattern: __CFHashDouble(doubleValue))
     }

stdlib/public/Darwin/Foundation/IndexSet.swift

@@ -136,10 +136,6 @@ public struct IndexSet : ReferenceConvertible, Equatable, BidirectionalCollectio
     public init() {
         _handle = _MutablePairHandle(NSIndexSet(), copying: false)
     }
-
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(_handle.map { $0.hash })
-    }
 
     public var hashValue: Int {
         return _handle.map { $0.hash }

stdlib/public/Darwin/Foundation/Locale.swift

@@ -404,11 +404,6 @@ public struct Locale : Hashable, Equatable, ReferenceConvertible {
 
     // MARK: -
     //
-
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(_wrapped)
-        hasher.combine(_autoupdating)
-    }
 
     public var hashValue : Int {
         if _autoupdating {

stdlib/public/Darwin/Foundation/Measurement.swift

@@ -36,10 +36,6 @@ public struct Measurement<UnitType : Unit> : ReferenceConvertible, Comparable, E
         self.unit = unit
     }
 
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(value)
-    }
-
     public var hashValue: Int {
         return Int(bitPattern: __CFHashDouble(value))
     }

stdlib/public/Darwin/Foundation/Notification.swift

@@ -39,10 +39,6 @@ public struct Notification : ReferenceConvertible, Equatable, Hashable {
         self.userInfo = userInfo
     }
 
-    public func hash(into hasher: inout Hasher) {
-        hasher.combine(name)
-    }
-
     public var hashValue: Int {
         return name.rawValue.hash
     }