Suppress [Obsolete] warnings for TelemetrySource

NuGet.config

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
     <add key="AspNetVNext" value="https://www.myget.org/F/aspnetcidev/api/v3/index.json" />

src/Microsoft.AspNet.Hosting/Internal/HostingEngine.cs

@@ -88,7 +88,9 @@ namespace Microsoft.AspNet.Hosting.Internal
             var logger = _applicationServices.GetRequiredService<ILogger<HostingEngine>>();
             var contextFactory = _applicationServices.GetRequiredService<IHttpContextFactory>();
             var contextAccessor = _applicationServices.GetRequiredService<IHttpContextAccessor>();
+#pragma warning disable 0618
             var telemetrySource = _applicationServices.GetRequiredService<TelemetrySource>();
+#pragma warning restore 0618
             var server = ServerFactory.Start(_serverInstance,
                 async features =>
                 {
@@ -96,12 +98,12 @@ namespace Microsoft.AspNet.Hosting.Internal
                     httpContext.ApplicationServices = _applicationServices;
                     var requestIdentifier = GetRequestIdentifier(httpContext);
                     contextAccessor.HttpContext = httpContext;
-
+#pragma warning disable 0618
                     if (telemetrySource.IsEnabled("Microsoft.AspNet.Hosting.BeginRequest"))
                     {
                         telemetrySource.WriteTelemetry("Microsoft.AspNet.Hosting.BeginRequest", new { httpContext = httpContext });
                     }
-
+#pragma warning restore 0618
                     try
                     {
                         using (logger.IsEnabled(LogLevel.Critical)
@@ -113,18 +115,20 @@ namespace Microsoft.AspNet.Hosting.Internal
                     }
                     catch (Exception ex)
                     {
+#pragma warning disable 0618
                         if (telemetrySource.IsEnabled("Microsoft.AspNet.Hosting.UnhandledException"))
                         {
                             telemetrySource.WriteTelemetry("Microsoft.AspNet.Hosting.UnhandledException", new { httpContext = httpContext, exception = ex });
                         }
-
+#pragma warning restore 0618
                         throw;
                     }
-
+#pragma warning disable 0618
                     if (telemetrySource.IsEnabled("Microsoft.AspNet.Hosting.EndRequest"))
                     {
                         telemetrySource.WriteTelemetry("Microsoft.AspNet.Hosting.EndRequest", new { httpContext = httpContext });
                     }
+#pragma warning restore 0618
                 });
 
             _applicationLifetime.NotifyStarted();

src/Microsoft.AspNet.Hosting/WebHostBuilder.cs

@@ -99,9 +99,11 @@ namespace Microsoft.AspNet.Hosting
             services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
             services.AddLogging();
 
+#pragma warning disable 0618
             var telemetrySource = new TelemetryListener("Microsoft.AspNet");
             services.AddInstance<TelemetrySource>(telemetrySource);
             services.AddInstance<TelemetryListener>(telemetrySource);
+#pragma warning restore 0618
 
             // Conjure up a RequestServices
             services.AddTransient<IStartupFilter, AutoRequestServicesStartupFilter>();

test/Microsoft.AspNet.TestHost.Tests/TestServerTests.cs

@@ -437,6 +437,7 @@ namespace Microsoft.AspNet.TestHost
             Assert.Equal("FoundFoo:False", await result.Content.ReadAsStringAsync());
         }
 
+#pragma warning disable 0618
         [Fact]
         public async Task BeginEndTelemetryAvailable()
         {
@@ -480,6 +481,7 @@ namespace Microsoft.AspNet.TestHost
             Assert.NotNull(listener.UnhandledException?.HttpContext);
             Assert.NotNull(listener.UnhandledException?.Exception);
         }
+#pragma warning restore 0618
 
         public class TestTelemetryListener
         {