Load default values for annotation members from classfiles

so that defaults are available to synthetic implementations.

#KT-48181 Fixed

Implementation is for JVM IR; other backends & FIR need to be supported
separately.

compiler/fir/java/src/org/jetbrains/kotlin/fir/java/deserialization/AnnotationsLoader.kt

@@ -80,17 +80,20 @@ internal class AnnotationsLoader(private val session: FirSession, private val ko
                 }
             }
 
-            override fun visitClassLiteral(name: Name, value: ClassLiteralValue) {
+            override fun visitClassLiteral(name: Name?, value: ClassLiteralValue) {
+                if (name == null) return
                 argumentMap[name] = buildGetClassCall {
                     argumentList = buildUnaryArgumentList(value.toFirClassReferenceExpression())
                 }
             }
 
-            override fun visitEnum(name: Name, enumClassId: ClassId, enumEntryName: Name) {
+            override fun visitEnum(name: Name?, enumClassId: ClassId, enumEntryName: Name) {
+                if (name == null) return
                 argumentMap[name] = enumClassId.toEnumEntryReferenceExpression(enumEntryName)
             }
 
-            override fun visitArray(name: Name): KotlinJvmBinaryClass.AnnotationArrayArgumentVisitor {
+            override fun visitArray(name: Name?): KotlinJvmBinaryClass.AnnotationArrayArgumentVisitor? {
+                if (name == null) return null
                 return object : KotlinJvmBinaryClass.AnnotationArrayArgumentVisitor {
                     private val elements = mutableListOf<FirExpression>()
 
@@ -131,7 +134,8 @@ internal class AnnotationsLoader(private val session: FirSession, private val ko
                 }
             }
 
-            override fun visitAnnotation(name: Name, classId: ClassId): KotlinJvmBinaryClass.AnnotationArgumentVisitor {
+            override fun visitAnnotation(name: Name?, classId: ClassId): KotlinJvmBinaryClass.AnnotationArgumentVisitor? {
+                if (name == null) return null
                 val list = mutableListOf<FirAnnotation>()
                 val visitor = loadAnnotation(classId, list)
                 return object : KotlinJvmBinaryClass.AnnotationArgumentVisitor by visitor {

compiler/fir/java/src/org/jetbrains/kotlin/fir/java/deserialization/JvmBinaryAnnotationDeserializer.kt

@@ -322,6 +322,11 @@ private fun FirSession.loadMemberAnnotations(
                 }
                 return annotationsLoader.loadAnnotationIfNotSpecial(classId, result)
             }
+
+            override fun visitAnnotationMemberDefaultValue(): KotlinJvmBinaryClass.AnnotationArgumentVisitor? {
+                // TODO: load annotation default values to properly support annotation instantiation feature
+                return null
+            }
         }
 
         open inner class MemberAnnotationVisitor(protected val signature: MemberSignature) : KotlinJvmBinaryClass.AnnotationVisitor {