Have HttpClientHandler throw the InnerException when catching TargetI…

…nvocationException

Originally on mobile workloads when UseNativeHttpHandler is set to true, all reflection method invokes
bubbled up a TargetInvocationException.  To make the details a bit more readable, we will instead rethrow
the InnerException.

Fixes dotnet#56089

src/libraries/System.Net.Http/src/System/Net/Http/HttpClientHandler.AnyMobile.cs

@@ -9,6 +9,7 @@
 using System.Globalization;
 using System.Net.Security;
 using System.Reflection;
+using System.Runtime.ExceptionServices;
 using System.Runtime.Versioning;
 using System.Security.Authentication;
 using System.Security.Cryptography.X509Certificates;
@@ -424,7 +425,15 @@ private object InvokeNativeHandlerMethod(string name, params object?[] parameter
  s_cachedMethods[name] = method;
  }
 
- return method!.Invoke(_nativeHandler, parameters)!;
+ try
+ {
+ return method!.Invoke(_nativeHandler, parameters)!;
+ }
+ catch (TargetInvocationException e)
+ {
+ ExceptionDispatchInfo.Capture(e.InnerException!).Throw();
+ throw;
+ }
  }
 
  private static bool IsNativeHandlerEnabled => RuntimeSettingParser.QueryRuntimeSettingSwitch(