IR: Keep annotations in enum constructor during lowering

compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/EnumClassLowering.kt

@@ -132,6 +132,7 @@ private class EnumClassLowering(val context: JvmBackendContext) : ClassLoweringP
                     returnType = declaration.returnType
                 }.apply {
                     parent = declaration.parent
+                    annotations = declaration.annotations
 
                     addValueParameter(
                         "\$enum\$name", context.irBuiltIns.stringType, JvmLoweredDeclarationOrigin.ENUM_CONSTRUCTOR_SYNTHETIC_PARAMETER

plugins/kapt3/kapt3-compiler/testData/converter/annotations2.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
-
 @file:kotlin.jvm.JvmName("AnnotationsTest")
 package test