Move MemoryExtensions.TryGetString to MemoryMarshal and remove TryGetArray (#16692)

* Remove Span.NonGenerics and update leftover AsRoS -> AsSpan changes

* Move MemoryExtensions.TryGetString to MemoryMarshal and remove TryGetArray

* Move TryGetString to common MemoryMarshal.cs

* Remove the `this` keyword, not an extension method

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs b/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs
index 2f0f34afee..d1a13156a8 100644
--- a/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs
+++ b/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs
@@ -510,7 +510,7 @@ namespace System.IO
                 // something other than an array and this is an UnmanagedMemoryStream-derived type that doesn't override Read(Span<byte>) will
                 // it then fall back to doing the ArrayPool/copy behavior.
                 return new ValueTask<int>(
-                    destination.TryGetArray(out ArraySegment<byte> destinationArray) ?
+                    MemoryMarshal.TryGetArray(destination, out ArraySegment<byte> destinationArray) ?
                         Read(destinationArray.Array, destinationArray.Offset, destinationArray.Count) :
                         Read(destination.Span));
             }