Add inner classes to duplicateLibraries test

compiler/testData/compileKotlinAgainstCustomJava/duplicateLibraries/DuplicateLibraries.kt

@@ -3,3 +3,7 @@ package test
 import testing.*
 
 val testObjectProperty = TopLevelObject
+
+val outer = Outer()
+val inn3r = Outer().Inner()
+val nested = Outer.Nested()

compiler/testData/compileKotlinAgainstCustomJava/duplicateLibraries/DuplicateLibraries.txt

@@ -1,3 +1,6 @@
 package test
 
+internal val inn3r: testing.Outer.Inner
+internal val nested: testing.Outer.Nested
+internal val outer: testing.Outer
 internal val testObjectProperty: testing.TopLevelObject

compiler/testData/compileKotlinAgainstCustomJava/duplicateLibraries/DuplicateTest.kt.txt

@@ -1,3 +1,8 @@
 package testing
 
 object TopLevelObject
+
+class Outer {
+    inner class Inner
+    class Nested
+}