[Test] Merge box against java tests into codegen black box tests

compiler/testData/codegen/boxAgainstJava/enum/simpleJavaInnerEnum.kt

@@ -1,3 +1,4 @@
+// MODULE: lib
 // FILE: test/Foo.java
 
 package test;
@@ -8,6 +9,7 @@ public class Foo {
     }
 }
 
+// MODULE: main(lib)
 // FILE: 1.kt
 
 import test.*