Moving Buffer to AsyncEnumerableEx.

Ix.NET/Source/System.Interactive.Async.Tests/AsyncTests.Single.cs

@@ -2988,12 +2988,12 @@ namespace Tests
         [Fact]
         public void Buffer_Null()
         {
-            AssertThrows<ArgumentNullException>(() => AsyncEnumerable.Buffer(default(IAsyncEnumerable<int>), 1));
-            AssertThrows<ArgumentNullException>(() => AsyncEnumerable.Buffer(default(IAsyncEnumerable<int>), 1, 1));
+            AssertThrows<ArgumentNullException>(() => AsyncEnumerableEx.Buffer(default(IAsyncEnumerable<int>), 1));
+            AssertThrows<ArgumentNullException>(() => AsyncEnumerableEx.Buffer(default(IAsyncEnumerable<int>), 1, 1));
 
-            AssertThrows<ArgumentOutOfRangeException>(() => AsyncEnumerable.Buffer(AsyncEnumerable.Return(42), -1));
-            AssertThrows<ArgumentOutOfRangeException>(() => AsyncEnumerable.Buffer(AsyncEnumerable.Return(42), -1, 1));
-            AssertThrows<ArgumentOutOfRangeException>(() => AsyncEnumerable.Buffer(AsyncEnumerable.Return(42), 1, -1));
+            AssertThrows<ArgumentOutOfRangeException>(() => AsyncEnumerableEx.Buffer(AsyncEnumerable.Return(42), -1));
+            AssertThrows<ArgumentOutOfRangeException>(() => AsyncEnumerableEx.Buffer(AsyncEnumerable.Return(42), -1, 1));
+            AssertThrows<ArgumentOutOfRangeException>(() => AsyncEnumerableEx.Buffer(AsyncEnumerable.Return(42), 1, -1));
         }
 
         [Fact]

Ix.NET/Source/System.Interactive.Async/Buffer.cs → Ix.NET/Source/System.Interactive.Async/System/Linq/Operators/Buffer.cs

@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace System.Linq
 {
-    public static partial class AsyncEnumerable
+    public static partial class AsyncEnumerableEx
     {
         public static IAsyncEnumerable<IList<TSource>> Buffer<TSource>(this IAsyncEnumerable<TSource> source, int count)
         {