Discover class objects for light class generation in the compiler

#KT-3337 In Progress
LightClasses: class object's property getter unresolved in Java, but compiles OK

compiler/testData/asJava/lightClasses/ClassObject.kt

@@ -0,0 +1,6 @@
+package test
+
+class WithClassObject {
+  class object {
+  }
+}