[AA] Add KtTestModule.moduleKind

- `TestModule.explicitTestModuleKind` requires a directive to be present
  to get the `TestModuleKind`. But we still want to find out the test
  module kind for test modules without a directive. Hence, we have to
  add this property to `KtTestModule` during its construction.

^KT-65960

analysis/analysis-api-fir/tests/org/jetbrains/kotlin/analysis/api/fir/test/configurators/AnalysisApiFirTestConfiguratorFactory.kt

@@ -41,6 +41,8 @@ object AnalysisApiFirTestConfiguratorFactory : AnalysisApiTestConfiguratorFactor
                 AnalysisSessionMode.Normal -> AnalysisApiFirCodeFragmentTestConfigurator(analyseInDependentSession = false)
                 AnalysisSessionMode.Dependent -> AnalysisApiFirCodeFragmentTestConfigurator(analyseInDependentSession = true)
             }
+
+            else -> unsupportedModeError(data)
         }
     }
 
@@ -59,6 +61,8 @@ object AnalysisApiFirTestConfiguratorFactory : AnalysisApiTestConfiguratorFactor
                 TestModuleKind.CodeFragment -> {
                     data.analysisSessionMode == AnalysisSessionMode.Normal
                 }
+
+                TestModuleKind.NotUnderContentRoot -> false
             }
         }
     }