[Test] Add FirDumpHandler to AbstractFirBlackBoxCodegenTest

This is needed to add ability to enable `FIR_DUMP` directive which
  may be helpful in investigating bugs

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/codegen/AbstractFirBlackBoxCodegenTest.kt

@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.test.directives.JvmEnvironmentConfigurationDirective
 import org.jetbrains.kotlin.test.frontend.fir.Fir2IrResultsConverter
 import org.jetbrains.kotlin.test.frontend.fir.FirFrontendFacade
 import org.jetbrains.kotlin.test.frontend.fir.FirOutputArtifact
+import org.jetbrains.kotlin.test.frontend.fir.handlers.FirDumpHandler
 import org.jetbrains.kotlin.test.model.*
 
 open class AbstractFirBlackBoxCodegenTest : AbstractJvmBlackBoxCodegenTestBase<FirOutputArtifact>(
@@ -35,6 +36,7 @@ open class AbstractFirBlackBoxCodegenTest : AbstractJvmBlackBoxCodegenTestBase<F
                 // See KT-44152
                 -USE_PSI_CLASS_FILES_READING
             }
+            useFrontendHandlers(::FirDumpHandler)
         }
     }
 }