[test] Add availability guards on Foundation hashing tests

Author: lorentey

test/stdlib/TestAffineTransform.swift

@@ -316,6 +316,8 @@ class TestAffineTransform : TestAffineTransformSuper {
     }
 
     func test_hashing() {
+        guard #available(macOS 9999, iOS 9999, watchOS 9999, tvOS 9999, *) else { return }
+
         // the transforms are made up and the values don't matter
         let a = AffineTransform(m11: 1.0, m12: 2.5, m21: 66.2, m22: 40.2, tX: -5.5, tY: 3.7)
         let b = AffineTransform(m11: -55.66, m12: 22.7, m21: 1.5, m22: 0.0, tX: -22, tY: -33)

test/stdlib/TestDateInterval.swift

@@ -66,7 +66,7 @@ class TestDateInterval : TestDateIntervalSuper {
     }
 
     func test_hashing() {
-        guard #available(iOS 10.10, OSX 10.12, tvOS 10.0, watchOS 3.0, *) else { return }
+        guard #available(macOS 9999, iOS 9999, watchOS 9999, tvOS 9999, *) else { return }
 
         let start1a = dateWithString("2019-04-04 17:09:23 -0700")
         let start1b = dateWithString("2019-04-04 17:09:23 -0700")

test/stdlib/TestIndexPath.swift

@@ -222,6 +222,7 @@ class TestIndexPath: TestIndexPathSuper {
     }
 
     func testHashing() {
+        guard #available(macOS 9999, iOS 9999, watchOS 9999, tvOS 9999, *) else { return }
         let samples: [IndexPath] = [
             [],
             [1],

test/stdlib/TestMeasurement.swift

@@ -155,6 +155,7 @@ class TestMeasurement : TestMeasurementSuper {
     }
 
     func testHashing() {
+        guard #available(macOS 9999, iOS 9999, watchOS 9999, tvOS 9999, *) else { return }
         let lengths: [[Measurement<UnitLength>]] = [
             [
                 Measurement(value: 5, unit: UnitLength.kilometers),

test/stdlib/TestUUID.swift

@@ -85,6 +85,7 @@ class TestUUID : TestUUIDSuper {
     }
 
     func test_hash() {
+        guard #available(macOS 9999, iOS 9999, watchOS 9999, tvOS 9999, *) else { return }
         let values: [UUID] = [
             // This list takes a UUID and tweaks every byte while
             // leaving the version/variant intact.