Additional loadJava/loadKotlin tests for nested classes

#KT-1174 Fixed

compiler/testData/loadKotlin/class/NestedGenericClass.txt

@@ -0,0 +1,9 @@
+package test
+
+internal final class Outer {
+    /*primary*/ public constructor Outer()
+    
+    internal final class Nested</*0*/ T> {
+        /*primary*/ public constructor Nested</*0*/ T>()
+    }
+}