Re-enable tests disabled for crossgen enabling

Fix #3269

test/dotnet-build.Tests/GivenDotnetBuildBuildsProjects.cs

@@ -43,7 +43,7 @@ namespace Microsoft.DotNet.Tools.Builder.Tests
                 .Pass();
         }
 
-        //[Fact] https://github.com/dotnet/cli/issues/3269
+        [Fact]
         public void It_builds_projects_with_ruleset_relative_path()
         {
             var testInstance = TestAssetsManager

test/dotnet-compile.Tests/CompilerTests.cs

@@ -72,7 +72,7 @@ namespace Microsoft.DotNet.Tools.Compiler.Tests
             Assert.True(File.Exists(generatedSatelliteAssemblyPath), $"File {generatedSatelliteAssemblyPath} was not found.");
         }
 
-        //[Fact] https://github.com/dotnet/cli/issues/3269
+        [Fact]
         public void LibraryWithAnalyzer()
         {
             var root = Temp.CreateDirectory();