Commits on Jul 3, 2024

1. [tests] verify trimmer warnings where appropriate …

   One change we need in the Android workload is to make sure that
   trimmer warnings are displayed if a project sets `$(IsAotCompatible)`.
   Customers would likely want this set for all platforms if they are
   using NativeAOT on iOS or MacCatalyst.
   
   I also wrote a test with somewhat complicated parameters to verify
   we get warnings.
   
   First, I can create a warning for both `IL2055` and `IL3050`:
   
       // Member field
       Type type = typeof (List<>);
       // ...
       // Later in OnCreate
       Console.WriteLine (type.MakeGenericType (typeof (object)));
   
   The combinations of tests are:
   
   | Configuration | Property                           | Warning(s)        |
   | ------------- | ---------------------------------- | ----------------- |
   | Debug         | (defaults)                         | None              |
   | Release       | (defaults)                         | None              |
   | Debug         | TrimMode=full                      | None              |
   | Release       | TrimMode=full                      | IL2055(2)         |
   | Release       | SuppressTrimAnalysisWarnings=false | IL2055(2)         |
   | Debug         | IsAotCompatible=true               | IL2055, IL3050    |
   | Release       | IsAotCompatible=false              | IL2055(2), IL3050 |
   
   Some of the cases receive duplicate warnings, but this is expected as
   the same behavior occurs in the simplest case:
   
   * `dotnet new console`
   * Add the above code to `Program.cs`
   * `dotnet publish -c Release -r win-x64 -p:PublishAot=true`
   * Receive warnings from both the Roslyn analyzer and ILC (NativeAOT compiler)
   
   In a future PR, I might try to "fix" the duplicate warnings.

   

   jonathanpeppers committed Jul 3, 2024
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