Uast: KotlinUNestedAnnotation for processing nested annotations (IDEA-185890)

plugins/uast-kotlin/testData/AnnotationComplex.render.txt

@@ -0,0 +1,26 @@
+public abstract annotation Annotation {
+}
+
+public final class A {
+    public fun A() = UastEmptyExpression
+}
+
+public abstract annotation AnnotationInner {
+    public abstract fun value() : Annotation = UastEmptyExpression
+}
+
+public final class B1 {
+    public fun B1() = UastEmptyExpression
+}
+
+public final class B2 {
+    public fun B2() = UastEmptyExpression
+}
+
+public abstract annotation AnnotationArray {
+    public abstract fun value() : Annotation[] = UastEmptyExpression
+}
+
+public final class C {
+    public fun C() = UastEmptyExpression
+}