Deserialize annotations on classes

First version, not all kinds of value arguments of annotations are supported

compiler/testData/loadKotlin/annotations/classes/Deprecated.kt

@@ -0,0 +1,9 @@
+package test
+
+deprecated("Class") class Class {
+    deprecated("Nested") class Nested
+
+    deprecated("Inner") inner class Inner
+
+    deprecated("class object") class object
+}