Add runfile to check for correct compatibility name generation

Checks that if OldClass was renamed to NewClass, then not only
OldClass.static_method is now NewClass.static_method, but also
compatibility name OldClass_static_method is now NewClass_static_method.
Same for enums, static vars etc

Examples/test-suite/rename_simple.i

@@ -11,6 +11,7 @@
 
 %inline %{
 struct OldStruct {
+  enum { ONE = 1, TWO, THREE };
   OldStruct() : OldInstanceVariable(111) {}
   int OldInstanceVariable;
   int OldInstanceMethod() { return 222; }