All methods that accept `bufferSize` and use `FileStream` internally should allow for passing zero to disable buffering

[adamsitnik]

This is something I've missed in #52928

public static partial class File
{
    public static System.IO.FileStream Create(string path, int bufferSize) { throw null; }
    public static System.IO.FileStream Create(string path, int bufferSize, System.IO.FileOptions options) { throw null; }
}

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Issue Details

---

This is something I've missed in #52928

public static partial class File
{
    public static System.IO.FileStream Create(string path, int bufferSize) { throw null; }
    public static System.IO.FileStream Create(string path, int bufferSize, System.IO.FileOptions options) { throw null; }
}

public partial class StreamReader : System.IO.TextReader
{
    public StreamReader(System.IO.Stream stream, System.Text.Encoding encoding, bool detectEncodingFromByteOrderMarks, int bufferSize) { }
    public StreamReader(System.IO.Stream stream, System.Text.Encoding? encoding = null, bool detectEncodingFromByteOrderMarks = true, int bufferSize = -1, bool leaveOpen = false) { }
    public StreamReader(string path, System.Text.Encoding encoding, bool detectEncodingFromByteOrderMarks, int bufferSize) { }
}

public partial class StreamWriter : System.IO.TextWriter
{
    public StreamWriter(System.IO.Stream stream, System.Text.Encoding encoding, int bufferSize) { }
    public StreamWriter(System.IO.Stream stream, System.Text.Encoding? encoding = null, int bufferSize = -1, bool leaveOpen = false) { }
    public StreamWriter(string path, bool append, System.Text.Encoding encoding, int bufferSize) { }
}

Author:	adamsitnik
Assignees:	-
Labels:	area-System.IO, easy, up-for-grabs
Milestone:	6.0.0

[adamsitnik]

It got fixed by #53669