Suppress TLS usage warnings (#3069)

Author: cheenamalhotra

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/TdsParserHelperClasses.cs

@@ -752,7 +752,7 @@ private void ParseMultipartName()
             }
         }
 
-        internal static readonly MultiPartTableName Null = new MultiPartTableName(new string[] { null, null, null, null });
+        internal static readonly MultiPartTableName Null = new(new string[] { null, null, null, null });
     }
 
     internal static class SslProtocolsHelper
@@ -767,12 +767,13 @@ private static string ToFriendlyName(this SslProtocols protocol)
             {
                 name = "TLS 1.3";
             }*/
+#pragma warning disable CA5397 // Do not use deprecated SslProtocols values
 #pragma warning disable CA5398 // Avoid hardcoded SslProtocols values
             if ((protocol & SslProtocols.Tls12) == SslProtocols.Tls12)
             {
                 name = "TLS 1.2";
             }
-#if NET
+#if NET8_0_OR_GREATER
 #pragma warning disable SYSLIB0039 // Type or member is obsolete: TLS 1.0 & 1.1 are deprecated
 #endif
             else if ((protocol & SslProtocols.Tls11) == SslProtocols.Tls11)
@@ -783,7 +784,7 @@ private static string ToFriendlyName(this SslProtocols protocol)
             {
                 name = "TLS 1.0";
             }
-#if NET
+#if NET8_0_OR_GREATER
 #pragma warning restore SYSLIB0039 // Type or member is obsolete: SSL and TLS 1.0 & 1.1 is deprecated
 #endif
 #pragma warning disable CS0618 // Type or member is obsolete: SSL is deprecated
@@ -796,6 +797,7 @@ private static string ToFriendlyName(this SslProtocols protocol)
             {
                 name = "SSL 2.0";
             }
+#pragma warning restore CA5397 // Do not use deprecated SslProtocols values
 #pragma warning restore CA5398 // Avoid hardcoded SslProtocols values
             else
             {
@@ -817,17 +819,17 @@ private static string ToFriendlyName(this SslProtocols protocol)
         public static string GetProtocolWarning(this SslProtocols protocol)
         {
             string message = string.Empty;
-#if NET
+#if NET8_0_OR_GREATER
 #pragma warning disable SYSLIB0039 // Type or member is obsolete: TLS 1.0 & 1.1 are deprecated
 #endif
 #pragma warning disable CS0618 // Type or member is obsolete : SSL is deprecated
 #pragma warning disable CA5397 // Do not use deprecated SslProtocols values
-#pragma warning disable CA5398 // Do not use deprecated SslProtocols values
+#pragma warning disable CA5398 // Avoid hardcoded SslProtocols values
             if ((protocol & (SslProtocols.Ssl2 | SslProtocols.Ssl3 | SslProtocols.Tls | SslProtocols.Tls11)) != SslProtocols.None)
-#pragma warning restore CA5398 // Do not use deprecated SslProtocols values
+#pragma warning restore CA5398 // Avoid hardcoded SslProtocols values
 #pragma warning restore CA5397 // Do not use deprecated SslProtocols values
 #pragma warning restore CS0618 // Type or member is obsolete : SSL is deprecated
-#if NET
+#if NET8_0_OR_GREATER
 #pragma warning restore SYSLIB0039 // Type or member is obsolete: SSL and TLS 1.0 & 1.1 is deprecated
 #endif
             {