builtin_func_b2a_oa_optakAvmThunkUndefined_thunk 501 core/builtin.h extern AvmBox builtin_func_b2a_oa_optakAvmThunkUndefined_thunk(AvmMethodEnv env, uint32_t argc, AvmBox* argv); builtin_func_b2a_oa_optakAvmThunkUndefined_thunk 502 core/builtin.h #define native_script_function_isXMLName_thunk builtin_func_b2a_oa_optakAvmThunkUndefined_thunk