Convert uses of the Dangerous APIs to use MemoryMarshal.GetReference (#15532)

* Convert uses of the Dangerous APIs to use MemoryMarshal.GetReference

* Adding Unsafe.AsRef(in...) and using that for ReadOnlySpan GetReference

* Fix typo - add missing bracket.

* Change AsRef(ref...) to AsRef(in...)

* Remove unnecessary whitespace

* Remove Unsafe.AsRef(in...) and its uses.

* Revert "Remove unnecessary whitespace"

This reverts commit 4dbe38cae472e868f74afbabde358f3a7609f6ae.

* Revert "Revert "Remove unnecessary whitespace""

This reverts commit 44d79483423ac9ffcf7c566b79d4a42c6aa15dac.

* Remove extra space to fix formatting.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs b/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs
index 9e1cfef49d..171113542f 100644
--- a/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs
+++ b/src/mscorlib/shared/System/IO/UnmanagedMemoryStream.cs
@@ -418,7 +418,7 @@ namespace System.IO
 
             unsafe
             {
-                fixed (byte* pBuffer = &destination.DangerousGetPinnableReference())
+                fixed (byte* pBuffer = &MemoryMarshal.GetReference(destination))
                 {
                     if (_buffer != null)
                     {
@@ -709,7 +709,7 @@ namespace System.IO
                 }
             }
 
-            fixed (byte* pBuffer = &source.DangerousGetPinnableReference())
+            fixed (byte* pBuffer = &MemoryMarshal.GetReference(source))
             {
                 if (_buffer != null)
                 {
@@ -794,7 +794,7 @@ namespace System.IO
             {
                 // See corresponding comment in ReadAsync for why we don't just always use Write(ReadOnlySpan<byte>).
                 // Unlike ReadAsync, we could delegate to WriteAsync(byte[], ...) here, but we don't for consistency.
-                if (source.DangerousTryGetArray(out ArraySegment<byte> sourceArray))
+                if (MemoryMarshal.TryGetArray(source, out ArraySegment<byte> sourceArray))
                 {
                     Write(sourceArray.Array, sourceArray.Offset, sourceArray.Count);
                 }