temporarily disable Span and MutableSpan for Windows

The current Windows nightly is too old to be able to compile the expected syntax.

Author: glessard

Sources/FoundationEssentials/Data/Data.swift

@@ -2203,6 +2203,7 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
         return try _representation.withUnsafeBytes(body)
     }
 
+#if !os(Windows)
     @available(FoundationSpan 6.2, *)
     public var bytes: RawSpan {
         @lifetime(borrow self)
@@ -2241,7 +2242,9 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
 
     @available(FoundationSpan 6.2, *)
     public var mutableBytes: MutableRawSpan {
+#if compiler(>=6.2)
         @lifetime(&self)
+#endif
         mutating get {
             let buffer: UnsafeMutableRawBufferPointer
             switch _representation {
@@ -2268,7 +2271,9 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
 
     @available(FoundationSpan 6.2, *)
     public var mutableSpan: MutableSpan<UInt8> {
+#if compiler(>=6.2)
         @lifetime(&self)
+#endif
         mutating get {
 #if false // see https://github.com/swiftlang/swift/issues/81218
             var bytes = mutableBytes
@@ -2298,6 +2303,7 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
 #endif
         }
     }
+#endif // !os(Windows)
 
     @_alwaysEmitIntoClient
     public func withContiguousStorageIfAvailable<ResultType>(_ body: (_ buffer: UnsafeBufferPointer<UInt8>) throws -> ResultType) rethrows -> ResultType? {
@@ -2950,7 +2956,7 @@ extension Data : Codable {
 }
 
 // TODO: remove once _overrideLifetime is public in the standard library
-
+#if !os(Windows)
 /// Unsafely discard any lifetime dependency on the `dependent` argument. Return
 /// a value identical to `dependent` with a lifetime dependency on the caller's
 /// borrow scope of the `source` argument.
@@ -2964,8 +2970,6 @@ internal func _overrideLifetime<
 >(
   _ dependent: consuming T, borrowing source: borrowing U
 ) -> T {
-  // TODO: Remove @_unsafeNonescapableResult. Instead, the unsafe dependence
-  // should be expressed by a builtin that is hidden within the function body.
   dependent
 }
 
@@ -2982,8 +2986,6 @@ internal func _overrideLifetime<
 >(
   _ dependent: consuming T, copying source: borrowing U
 ) -> T {
-  // TODO: Remove @_unsafeNonescapableResult. Instead, the unsafe dependence
-  // should be expressed by a builtin that is hidden within the function body.
   dependent
 }
 
@@ -3001,7 +3003,6 @@ internal func _overrideLifetime<
   _ dependent: consuming T,
   mutating source: inout U
 ) -> T {
-  // TODO: Remove @_unsafeNonescapableResult. Instead, the unsafe dependence
-  // should be expressed by a builtin that is hidden within the function body.
   dependent
 }
+#endif

Tests/FoundationEssentialsTests/DataTests.swift

@@ -1634,6 +1634,7 @@ class DataTests : XCTestCase {
         // source.advanced(by: 5)
     }
 
+#if !os(Windows)
     func test_InlineDataSpan() throws {
         guard #available(FoundationSpan 6.2, *) else { throw XCTSkip("Span not available") }
 
@@ -1777,6 +1778,7 @@ class DataTests : XCTestCase {
         XCTAssertEqual(source[i], 0)
         XCTAssertEqual(source[i+1], .max)
     }
+#endif // !os(Windows)
 
     #if false // FIXME: XCTest doesn't support crash tests yet rdar://20195010&22387653
     func test_bounding_failure_subdata() {