[Mono.Android] Print type & member remapping info (#7844)

[jonpryor]

Context: f6f11a5
Context: f99fc81

How do we diagnose type & member remapping issues? If (when) things don't work as anticipated, what do we do?

If a method is remapped and the remapped-to method cannot be found, then Java.Interop will write a message to stderr:

warning: For declared method `java/lang/Object.remappedToToString.()Ljava/lang/String;`, could not find requested method `java/lang/Object.toString.()Ljava/lang/String;`!

which is a scenario we think/assume Shouldn't Happen™. If it does happen, we believe that the above message will be sufficient to fix the problem.

However, in the "happy" path in which the replacement method is found or the "less-happy" path in which nothing happens, how do we get insight to check or verify what's going on?

Update AndroidTypeManager.GetStaticMethodFallbackTypesCore() and AndroidTypeManager.GetReplacementMethodInfoCore() so that they print out successful type & member remapping when the "assembly" log category is enabled:

adb shell setprop debug.mono.log default,assembly

When the assembly log category is enabled, invocations of AndroidTypeManager.GetStaticMethodFallbackTypesCore() will print messages such as the following to adb logcat:

D monodroid-assembly : Remapping type `com/xamarin/interop/RenameClassBase1` to one of { `com/xamarin/interop/DesugarRenameClassBase1`, `com/xamarin/interop/RenameClassBase1$-CC` }

When the assembly log category is enabled, invocations of AndroidTypeManager.GetReplacementMethodInfoCore() will print messages such as the following to adb logcat
when a replacement method will be attempted:

D monodroid-assembly : Remapping method `java/lang/Object.remappedToToString()Ljava/lang/String;` to `java/lang/Object.toString.()Ljava/lang/String;`; param-count: 0; instance-to-static? false

This will hopefully provide enough information to reason through type and member remapping behavior.

Additionally, as this is a cherry-pick of a983fbb to the release/7.0.2xx branch, apply a small subset of 77678eb:

updat[e] AndroidRuntime.GetStaticMethodFallbackTypesCore() to
support type remapping (f6f11a5) -- which was overlooked/not
considered -- such that the types returned are after calling
AndroidRuntime.GetReplacementTypeCore(), which looks up
<replace-type/> values. This allows us to remap
AndroidInterface to DesugarAndroidInterface$_CC, allowing the
DesugarInterfaceStaticMethod() test to pass.