FIR: handle named argument properly during annotation serialization

compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/constant/FirToConstantValueTransformer.kt

@@ -97,4 +97,8 @@ internal object FirToConstantValueTransformer : FirDefaultVisitor<ConstantValue<
     ): ConstantValue<*> {
         return ArrayValue(varargArgumentsExpression.arguments.mapNotNull { it.accept(this, null) })
     }
+
+    override fun visitNamedArgumentExpression(namedArgumentExpression: FirNamedArgumentExpression, data: Nothing?): ConstantValue<*>? {
+        return namedArgumentExpression.expression.accept(this, null)
+    }
 }

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java

@@ -16118,6 +16118,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/fir/NameHighlighter.kt");
         }
 
+        @Test
+        @TestMetadata("namedArgumentOnTypeAnnotation.kt")
+        public void testNamedArgumentOnTypeAnnotation() throws Exception {
+            runTest("compiler/testData/codegen/box/fir/namedArgumentOnTypeAnnotation.kt");
+        }
+
         @Test
         @TestMetadata("noSymbolForIntRangeIterator.kt")
         public void testNoSymbolForIntRangeIterator() throws Exception {

compiler/testData/codegen/box/fir/namedArgumentOnTypeAnnotation.kt

@@ -0,0 +1,29 @@
+// TARGET_BACKEND: JVM_IR
+// FILE: Nls.java
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Documented
+@Retention(RetentionPolicy.CLASS)
+@Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.LOCAL_VARIABLE, ElementType.TYPE_USE, ElementType.TYPE, ElementType.PACKAGE})
+public @interface Nls {
+
+    enum Capitalization {
+        NotSpecified,
+        Title,
+        Sentence
+    }
+
+    Capitalization capitalization() default Capitalization.NotSpecified;
+}
+
+
+// FILE: box.kt
+
+fun foo(arg: @Nls(capitalization = Nls.Capitalization.Sentence) String) = arg
+
+fun box() = foo("OK")

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java

@@ -16118,6 +16118,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/fir/NameHighlighter.kt");
         }
 
+        @Test
+        @TestMetadata("namedArgumentOnTypeAnnotation.kt")
+        public void testNamedArgumentOnTypeAnnotation() throws Exception {
+            runTest("compiler/testData/codegen/box/fir/namedArgumentOnTypeAnnotation.kt");
+        }
+
         @Test
         @TestMetadata("noSymbolForIntRangeIterator.kt")
         public void testNoSymbolForIntRangeIterator() throws Exception {