Remove sourceFullPath from Unix FileSystem.MoveDirectory exception (dotnet#55658)

* Update Path.Windows.cs

* Change helper method to internal

Switched method from a private protection level to an internal protection level. Also removed trailing whitespace.

* Removed sourceFullPath from Unix FileSystem.MoveDirectory thrown exception

* Undo commit from main fork branch

* Revert FileSystem.Windows.cs changes

Author: steveberdy

src/libraries/System.Private.CoreLib/src/System/IO/Directory.cs

@@ -288,7 +288,7 @@ public static void Move(string sourceDirName, string destDirName)
             if (!FileSystem.DirectoryExists(fullsourceDirName) && !FileSystem.FileExists(fullsourceDirName))
                 throw new DirectoryNotFoundException(SR.Format(SR.IO_PathNotFound_Path, fullsourceDirName));
 
-            if (!sameDirectoryDifferentCase // This check is to allowing renaming of directories
+            if (!sameDirectoryDifferentCase // This check is to allow renaming of directories
                 && FileSystem.DirectoryExists(fulldestDirName))
                 throw new IOException(SR.Format(SR.IO_AlreadyExists_Name, fulldestDirName));
 

src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Unix.cs

@@ -380,7 +380,7 @@ public static void MoveDirectory(string sourceFullPath, string destFullPath)
                 // On Windows we end up with ERROR_INVALID_NAME, which is
                 // "The filename, directory name, or volume label syntax is incorrect."
                 //
-                // This surfaces as a IOException, if we let it go beyond here it would
+                // This surfaces as an IOException, if we let it go beyond here it would
                 // give DirectoryNotFound.
 
                 if (Path.EndsInDirectorySeparator(sourceFullPath))
@@ -405,7 +405,7 @@ public static void MoveDirectory(string sourceFullPath, string destFullPath)
                     case Interop.Error.EACCES: // match Win32 exception
                         throw new IOException(SR.Format(SR.UnauthorizedAccess_IODenied_Path, sourceFullPath), errorInfo.RawErrno);
                     default:
-                        throw Interop.GetExceptionForIoErrno(errorInfo, sourceFullPath, isDirectory: true);
+                        throw Interop.GetExceptionForIoErrno(errorInfo, isDirectory: true);
                 }
             }
         }