Merge pull request #4929 from xamarin/d15-9-bump-mono-head

Bump mono to head of 2018-04

external/mono

@@ -1 +1 @@
-Subproject commit 46ff31252daa7e594600ad39fac195d971ee27d1
+Subproject commit 1fd01f4fd7dd34a3a71a79dec074c114a6f6e1e3

src/Compression/Compression.cs

@@ -202,7 +202,8 @@ namespace Compression
 			return ReadCore (new Span<byte> (array, offset, count));
 		}
 
-		public override int Read (Span<byte> destination)
+		// FIXME needs Span
+		internal override int Read (Span<byte> destination)
 		{
 			if (GetType () != typeof (CompressionStream)) {
 				// CompressStream is not sealed, and a derived type may have overridden Read(byte[], int, int) prior
@@ -312,7 +313,8 @@ namespace Compression
 			return ReadAsyncMemory (new Memory<byte>(array, offset, count), cancellationToken).AsTask ();
 		}
 
-		public override ValueTask<int> ReadAsync (Memory<byte> destination, CancellationToken cancellationToken = default(CancellationToken))
+		// FIXME needs Span
+		internal override ValueTask<int> ReadAsync (Memory<byte> destination, CancellationToken cancellationToken = default(CancellationToken))
 		{
 			if (GetType () != typeof (CompressionStream)) {
 				// Ensure that existing streams derived from DeflateStream and that override ReadAsync(byte[],...)
@@ -405,7 +407,8 @@ namespace Compression
 			WriteCore (new ReadOnlySpan<byte> (array, offset, count));
 		}
 
-		public override void Write (ReadOnlySpan<byte> source)
+		// FIXME needs Span
+		internal override void Write (ReadOnlySpan<byte> source)
 		{
 			if (GetType () != typeof (CompressionStream)) {
 				// DeflateStream is not sealed, and a derived type may have overridden Write(byte[], int, int) prior
@@ -558,7 +561,8 @@ namespace Compression
 			return WriteAsyncMemory (new ReadOnlyMemory<byte> (array, offset, count), cancellationToken);
 		}
 
-		public override Task WriteAsync (ReadOnlyMemory<byte> source, CancellationToken cancellationToken)
+		// FIXME needs Span
+		internal override Task WriteAsync (ReadOnlyMemory<byte> source, CancellationToken cancellationToken)
 		{
 			if (GetType () != typeof (CompressionStream)) {
 				// Ensure that existing streams derived from DeflateStream and that override WriteAsync(byte[],...)

tools/linker/MobileProfile.cs

@@ -172,6 +172,7 @@ namespace Xamarin.Linker {
 			"System.Threading.Overlapped",
 			"System.Threading.Tasks.Parallel",
 			"System.Threading.Tasks",
+			"System.Threading.Tasks.Extensions",
 			"System.Threading.Thread",
 			"System.Threading.ThreadPool",
 			"System.Threading.Timer",