Fir2IrClassifierStorage: don't calculate signature in registerClass

compiler/tests-compiler-utils/tests/org/jetbrains/kotlin/codegen/GenerationUtils.kt

@@ -113,7 +113,8 @@ object GenerationUtils {
             configuration.languageVersionSettings,
             files,
             emptyList(),
-            IrGenerationExtension.getInstances(project)
+            IrGenerationExtension.getInstances(project),
+            generateSignatures = false
         )
         val fir2IrExtensions = JvmFir2IrExtensions(configuration, JvmIrDeserializerImpl(), JvmIrMangler)
         val (moduleFragment, components) = firAnalyzerFacade.convertToIr(fir2IrExtensions)

compiler/tests-compiler-utils/tests/org/jetbrains/kotlin/fir/FirAnalyzerFacade.kt

@@ -48,6 +48,7 @@ class FirAnalyzerFacade(
     val irGeneratorExtensions: Collection<IrGenerationExtension>,
     val useLightTree: Boolean = false,
     val enablePluginPhases: Boolean = false,
+    val generateSignatures: Boolean = false,
 ) : AbstractFirAnalyzerFacade() {
     private var firFiles: List<FirFile>? = null
     private var _scopeSession: ScopeSession? = null
@@ -117,7 +118,8 @@ class FirAnalyzerFacade(
             FirJvmKotlinMangler(session), JvmIrMangler, IrFactoryImpl,
             FirJvmVisibilityConverter,
             Fir2IrJvmSpecialAnnotationSymbolProvider(),
-            irGeneratorExtensions
+            irGeneratorExtensions,
+            generateSignatures
         )
     }
 }