[Mono.Android] Add AndroidTypeManager.GetInvokerTypeCore() override (#9978)

Context: e347cd3
Context: #9962
Context: dotnet/java-interop@dd3c1d0

CoreCLR + `dotnet new maui -sc` (#9962) crashes:

	E AndroidRuntime: FATAL EXCEPTION: main
	E AndroidRuntime: Process: com.companyname.testmaui, PID: 25497
	E AndroidRuntime: android.runtime.JavaProxyThrowable: [System.≈]: Acc_CreateAbstEx, Android.Views.LayoutInflater
	E AndroidRuntime: at System.Reflection.RuntimeConstructorInfo.CheckCanCreateInstance + 0x3c(Unknown Source)
	E AndroidRuntime: at System.Reflection.RuntimeConstructorInfo.ThrowNoInvokeException + 0x0(Unknown Source)
	E AndroidRuntime: at System.Reflection.RuntimeConstructorInfo.Invoke + 0xe(Unknown Source)
	E AndroidRuntime: at System.Reflection.ConstructorInfo.Invoke + 0x0(Unknown Source)
	E AndroidRuntime: at Microsoft.Android.Runtime.ManagedValueManager.TryCreatePeer + 0x3b(Unknown Source)
	E AndroidRuntime: at Java.Interop.JniRuntime+JniValueManager.TryCreatePeerInstance + 0x19(Unknown Source)
	E AndroidRuntime: at Java.Interop.JniRuntime+JniValueManager.CreatePeerInstance + 0x5a(Unknown Source)
	E AndroidRuntime: at Java.Interop.JniRuntime+JniValueManager.CreatePeer + 0x150(Unknown Source)
	E AndroidRuntime: at Java.Interop.JniRuntime+JniValueManager.GetPeer + 0x169(Unknown Source)
	E AndroidRuntime: at Java.Lang.Object.GetObject + 0x1d(Unknown Source)
	E AndroidRuntime: at Java.Lang.Object._GetObject + 0x19(Unknown Source)
	E AndroidRuntime: at Java.Lang.Object.GetObject + 0x1(Unknown Source)
	E AndroidRuntime: at Android.Views.LayoutInflater.From + 0x3f(Unknown Source)
	E AndroidRuntime: at Microsoft.Maui.Platform.MauiContextExtensions.GetLayoutInflater + 0x2b(Unknown Source)

`AndroidTypeManager` didn't override the
`JniRuntime.JniTypeManager.GetInvokerTypeCore()` method
(dotnet/java-interop@dd3c1d05) and the base implementation of this
method in `JniTypeManager` only looks at `JniTypeSignatureAttribute`
to find the "invoker" type.

.NET for Android bindings don't use `JniTypeSignatureAttribute`, they
use `RegisterAttribute`; for example, consider the abstract
`Android.Views.LayoutInflater` class:

	[Register ("android/view/LayoutInflater", DoNotGenerateAcw=true)]
	partial class LayoutInflater : Java.Lang.Object {
	}

	[global::Android.Runtime.Register ("android/view/LayoutInflater", DoNotGenerateAcw=true)]
	internal partial class LayoutInflaterInvoker : LayoutInflater {
	}

The default `JniRuntime.JniTypeManager.GetInvokerType()` behavior
will not work with .NET for Android bindings.

This has historically been fine because
`AndroidValueManager.CreatePeer()` / `TypeManager.CreateInstance()`
would use `JavaObjectExtensions.GetInvokerType()` to obtain the
`Invoker` type via "pattern-based Reflection", appending `Invoker`
to the abstract type name to obtain a non-abstract constructable type.

That historical behavior changed with e347cd3: CoreCLR doesn't use
`AndroidValueManager`, but instead now uses `ManagedValueManager`,
which *doesn't* call `TypeManager.CreateInstance()` or
`JavaObjectExtensions.GetInvokerType()`.  It instead relies on
`JniRuntime.JniTypeManager.GetInvokerType()`, and as that was not
overridden by `AndroidTypeManager`, the invoker for `LayoutInflater`
could not be found, resulting in a `MemberAccessException` as we
attempt to invoke the constructor on the *abstract* `LayoutInflater`
type itself! [^0].

Add an `AndroidTypeManager.GetInvokerTypeCore()` method override
which calls `JavaObjectExtensions.GetInvokerType` when needed to keep
backwards compatibility.

[^0]:   The "complete" exception message would be:  
        Cannot create an instance of Android.Views.LayoutInflater because it is an abstract class.

Author: simonrozsival

src/Mono.Android/Android.Runtime/AndroidRuntime.cs

@@ -260,6 +260,7 @@ struct JniRemappingReplacementMethod
 
 		bool jniAddNativeMethodRegistrationAttributePresent;
 
+		const DynamicallyAccessedMemberTypes Constructors = DynamicallyAccessedMemberTypes.PublicConstructors | DynamicallyAccessedMemberTypes.NonPublicConstructors;
 		const DynamicallyAccessedMemberTypes Methods = DynamicallyAccessedMemberTypes.PublicMethods | DynamicallyAccessedMemberTypes.NonPublicMethods;
 		const DynamicallyAccessedMemberTypes MethodsAndPrivateNested = Methods | DynamicallyAccessedMemberTypes.NonPublicNestedTypes;
 
@@ -392,6 +393,19 @@ protected override IEnumerable<string> GetSimpleReferences (Type type)
 			};
 		}
 
+		[return: DynamicallyAccessedMembers (Constructors)]
+		protected override Type? GetInvokerTypeCore (
+			[DynamicallyAccessedMembers (Constructors)]
+			Type type)
+		{
+			if (type.IsInterface || type.IsAbstract) {
+				return JavaObjectExtensions.GetInvokerType (type)
+					?? base.GetInvokerTypeCore (type);
+			}
+
+			return null;
+		}
+
 		delegate Delegate GetCallbackHandler ();
 
 		static MethodInfo? dynamic_callback_gen;