IR: copy anonymous initializer annotations properly #KT-48687 Fixed

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/DeepCopyIrTreeWithSymbols.kt

@@ -302,6 +302,7 @@ open class DeepCopyIrTreeWithSymbols(
             mapDeclarationOrigin(declaration.origin),
             IrAnonymousInitializerSymbolImpl(declaration.descriptor)
         ).apply {
+            transformAnnotations(declaration)
             body = declaration.body.transform()
         }