Use not patterns.

Author: bgrainger

src/MySqlConnector/MySql.Data.MySqlClient/MySqlConnectionStringBuilder.cs

@@ -752,7 +752,7 @@ private T ChangeType(object objectValue)
 				{
 					return (T) Enum.Parse(typeof(T), enumString, ignoreCase: true);
 				}
-				catch (Exception ex) when (!(ex is ArgumentException))
+				catch (Exception ex) when (ex is not ArgumentException)
 				{
 					throw new ArgumentException("Value '{0}' not supported for option '{1}'.".FormatInvariant(objectValue, typeof(T).Name), ex);
 				}

tests/SideBySide/BulkLoaderAsync.cs

@@ -137,7 +137,7 @@ public async Task BulkLoadCsvFileNotFound()
 				while (exception.InnerException is not null)
 					exception = exception.InnerException;
 
-				if (!(exception is FileNotFoundException))
+				if (exception is not FileNotFoundException)
 				{
 					try
 					{

tests/SideBySide/BulkLoaderSync.cs

@@ -155,7 +155,7 @@ public void BulkLoadCsvFileNotFound()
 				while (exception.InnerException is not null)
 					exception = exception.InnerException;
 
-				if (!(exception is FileNotFoundException))
+				if (exception is not FileNotFoundException)
 				{
 					try
 					{