Change the way it is implemented to traverse the operator<=>() function and construct a AbstractMetaFunction from it first, so that the standard shiboken rejection mechanism works and the argument is properly converted. Change AbstractMetaClass::addSynthesizedComparisonOperators() to take an AbstractMetaArgumentList and a mask of operators to be created, enabling synthesizing of non-homogeneous operators and operator!=() from operator==() in a subsequent change. Implement the rule for synthesizing operator==()/operator!=() from operator<=>() correctly (only happens for defaulted operator<=>()). Do not synthesize ordering operators for non-pair type containers. Task-number: PYSIDE-3245 Change-Id: I83865253c05ea87ebd874f0c619115f132a98477 Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>