Fix gmock_gen to use MOCK_METHOD instead of old style macros. Fix several
related bugs in argument parsing and return types.
- handle commas more correctly in return types
- handle commas correctly in arguments
- handle default values more correctly
PiperOrigin-RevId: 294435093
Add a matcher `testing::ReturnRoundRobin` which, on each call, returns the next element in the sequence, restarting at the beginning once it has reached the end.
PiperOrigin-RevId: 276312136