[cppia] Generate scriptable functions for overriden functions

[Aidan63]

Fixes HaxeFoundation/hxcpp#1150

Test has been added in this hxcpp merge HaxeFoundation/hxcpp#1154

That hxcpp merge is failing due to the new test, once this is merged the CI on that hxcpp merge should be re-ran and it will then pass.

[Simn]

Does this interact with overloads somehow given that we're comparing methods by name?

[Aidan63]

I don't think so. Overloads only really work on extern classes iirc, and that code is only ran on haxe classes and interfaces.

[rainyt]

This fix doesn't seem to have released a new haxe yet. Can I get a new haxe executable file from the nightly build? Which one is stable? (Mac user)

[rainyt]

4.3 bug fix did not update this modification. Can it be fixed in 4.3?

[rainyt]

src/haxe/ds/_GenericStack/GenericStackIterator_hscript_Token.cpp 
Error: ./src/haxe/ds/_GenericStack/GenericStackIterator_hscript_Token.cpp:141:13: error: invalid covariant return type for 'virtual Dynamic haxe::ds::_GenericStack::GenericStackIterator_hscript_Token_obj__scriptable::next()'
   ::Dynamic next(  ) {
             ^
./src/haxe/ds/_GenericStack/GenericStackIterator_hscript_Token.cpp:48:19: error:   overriding 'virtual hscript::Token haxe::ds::_GenericStack::GenericStackIterator_hscript_Token_obj::next()'
  ::hscript::Token GenericStackIterator_hscript_Token_obj::next(){
                   ^
./src/haxe/ds/_GenericStack/GenericStackIterator_hscript_Token.cpp:152:55: warning: 'fastcall' attribute directive ignored [-Wattributes]
 static void CPPIA_CALL __s_hasNext(::hx::CppiaCtx *ctx) {
                                                       ^
./src/haxe/ds/_GenericStack/GenericStackIterator_hscript_Token.cpp:157:52: warning: 'fastcall' attribute directive ignored [-Wattributes]
 static void CPPIA_CALL __s_next(::hx::CppiaCtx *ctx) {
                                                    ^
./src/haxe/ds/_GenericStack/GenericStackIterator_hscript_Token.cpp:171:67: warning: 'fastcall' attribute directive ignored [-Wattributes]
 static void CPPIA_CALL __script_construct_func(::hx::CppiaCtx *ctx) {

I have tried this fix, but compilation errors occur.

[rainyt]

HaxeFoundation/hxcpp#1175

Even with this PR, the test cases cannot pass. This is my issues.