### Compilation failed:

error: 1: no type named 'Type1'
void func(Type1 param1, Type2 param2, Type3 param3) {}
          ^^^^^
error: 1: no type named 'Type2'
void func(Type1 param1, Type2 param2, Type3 param3) {}
                        ^^^^^
error: 1: no type named 'Type3'
void func(Type1 param1, Type2 param2, Type3 param3) {}
                                      ^^^^^
3 errors