[gardening] Replace `LONG_MAX` with `Int.max`
diff --git a/Foundation/NSCalendar.swift b/Foundation/NSCalendar.swift
index d350d6f..b21dd17 100644
--- a/Foundation/NSCalendar.swift
+++ b/Foundation/NSCalendar.swift
@@ -1264,7 +1264,7 @@
 // or quantities of the units.
 // When you create a new one of these, all values begin Undefined.
 
-public var NSDateComponentUndefined: Int = LONG_MAX
+public var NSDateComponentUndefined: Int = Int.max
 
 open class NSDateComponents : NSObject, NSCopying, NSSecureCoding {
     internal var _calendar: Calendar?
diff --git a/Foundation/NSThread.swift b/Foundation/NSThread.swift
index 815b19d..3bcff7b 100644
--- a/Foundation/NSThread.swift
+++ b/Foundation/NSThread.swift
@@ -89,8 +89,8 @@
         var ti = end_at - start_at
         let end_ut = start_ut + ti
         while (0.0 < ti) {
-            var __ts__ = timespec(tv_sec: LONG_MAX, tv_nsec: 0)
-            if ti < Double(LONG_MAX) {
+            var __ts__ = timespec(tv_sec: Int.max, tv_nsec: 0)
+            if ti < Double(Int.max) {
                 var integ = 0.0
                 let frac: Double = withUnsafeMutablePointer(to: &integ) { integp in
                     return modf(ti, integp)
@@ -110,8 +110,8 @@
         let start_ut = CFGetSystemUptime()
         let end_ut = start_ut + ti
         while 0.0 < ti {
-            var __ts__ = timespec(tv_sec: LONG_MAX, tv_nsec: 0)
-            if ti < Double(LONG_MAX) {
+            var __ts__ = timespec(tv_sec: Int.max, tv_nsec: 0)
+            if ti < Double(Int.max) {
                 var integ = 0.0
                 let frac: Double = withUnsafeMutablePointer(to: &integ) { integp in
                     return modf(ti, integp)