Update preprocessor directives for .NET 8 compatibility in KernelJsonSchemaBuilder, ProtocolEndpoint, and Logger

Author: bruzel

src/Microsoft.SqlTools.Connectors.VSCode/InternalUtilities/src/Schema/KernelJsonSchemaBuilder.cs

@@ -32,7 +32,7 @@ internal static class KernelJsonSchemaBuilder
         TreatNullObliviousAsNonNullable = true,
     };
 
-#if NET6_0_OR_GREATER
+#if NET8_0_OR_GREATER
     [RequiresUnreferencedCode("Uses reflection to generate JSON schema, making it incompatible with AOT scenarios.")]
     [RequiresDynamicCode("Uses reflection to generate JSON schema, making it incompatible with AOT scenarios.")]
 #endif
@@ -68,7 +68,7 @@ public static KernelJsonSchema Build(
         return KernelJsonSchema.Parse(jsonObj.ToJsonString(options));
     }
 
-#if NET6_0_OR_GREATER
+#if NET8_0_OR_GREATER
     [RequiresUnreferencedCode("Uses JsonStringEnumConverter and DefaultJsonTypeInfoResolver classes, making it incompatible with AOT scenarios.")]
     [RequiresDynamicCode("Uses JsonStringEnumConverter and DefaultJsonTypeInfoResolver classes, making it incompatible with AOT scenarios.")]
 #endif

src/Microsoft.SqlTools.Hosting/Hosting/Protocol/ProtocolEndpoint.cs

@@ -121,7 +121,7 @@ public async Task Start()
         public async Task WaitForExitAsync()
         {
             this.endpointExitedTask = new TaskCompletionSource<bool>();
-#if !NET6_0_OR_GREATER
+#if !NET8_0_OR_GREATER
             await this.endpointExitedTask.Task;
 #else
             await this.endpointExitedTask.Task.WaitAsync(CancellationToken.None);

src/Microsoft.SqlTools.Hosting/Utility/Logger.cs

@@ -202,7 +202,7 @@ public static string GenerateLogFilePath(string logFilePrefix = defaultTraceSour
             int uniqueId;
             try
             {
-#if NET6_0_OR_GREATER
+#if NET8_0_OR_GREATER
                 uniqueId = Environment.ProcessId;
 #else
                 uniqueId = Process.GetCurrentProcess().Id;