Disable S.T.Json tests on NativeAOT (#87203)

We're getting OOM-killed in the CI. See #87078.

I'm also changing how we do warning suppressions. We still need to suppress most of AOT warnings because xUnit/tests are not warning clean, but the warning about generic recursion is critical for the product and should fail the build.

Author: MichalStrehovsky

eng/testing/tests.singlefile.targets

@@ -29,10 +29,10 @@
     <IlcSdkPath>$(CoreCLRAotSdkDir)</IlcSdkPath>
     <IlcFrameworkPath>$(NetCoreAppCurrentTestHostSharedFrameworkPath)</IlcFrameworkPath>
     <IlcFrameworkNativePath>$(NetCoreAppCurrentTestHostSharedFrameworkPath)</IlcFrameworkNativePath>
-    <NoWarn>$(NoWarn);IL1005;IL2105;IL3000;IL3001;IL3002;IL3003</NoWarn>
+    <NoWarn>$(NoWarn);IL1005;IL2105;IL3000;IL3001;IL3002;IL3003;IL3050;IL3051;IL3052;IL3053</NoWarn>
     <TrimMode>partial</TrimMode>
     <SuppressTrimAnalysisWarnings>true</SuppressTrimAnalysisWarnings>
-    <SuppressAotAnalysisWarnings>true</SuppressAotAnalysisWarnings>
+    <TrimmerSingleWarn>false</TrimmerSingleWarn>
   </PropertyGroup>
 
   <!-- Needed for the amd64 -> amd64 musl cross-build to pass the target flag. -->

src/libraries/Microsoft.Extensions.DependencyModel/tests/Microsoft.Extensions.DependencyModel.Tests.csproj

@@ -6,6 +6,9 @@
     <DefaultItemExcludes>$(DefaultItemExcludes);nonentrypointassembly\*</DefaultItemExcludes>
     <!-- Needed for .NET Framework. -->
     <GenerateDependencyFile>true</GenerateDependencyFile>
+
+    <!-- FluentAssertions library has a generic recursion and the warning breaks NativeAOT build -->
+    <NoWarn>$(NoWarn);IL3054</NoWarn>
   </PropertyGroup>
 
   <ItemGroup>

src/libraries/tests.proj

@@ -412,6 +412,10 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TestNativeAot)' == 'true' and '$(RunDisabledNativeAotTests)' != 'true'">
+    <!-- https://github.com/dotnet/runtime/issues/87078 -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Tests\System.Text.Json.SourceGeneration.Roslyn3.11.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Tests\System.Text.Json.SourceGeneration.Roslyn4.4.Tests.csproj" />
+
     <!-- https://github.com/dotnet/runtime/issues/83167 -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Numerics.Vectors\tests\System.Numerics.Vectors.Tests.csproj"
                        Condition="'$(TargetArchitecture)' == 'arm64'" />