tests/stress/recursive_gen: Add test for recursive gen with iter.
tests/stress/recursive_gen: Add test for recursive gen with iter.

pozetroninc/micropython,MrSurly/micropython,ryannathans/micropython,pozetroninc/micropython,adafruit/circuitpython,tobbad/micropython,swegener/micropython,henriknelson/micropython,henriknelson/micropython,adafruit/circuitpython,swegener/micropython,pramasoul/micropython,kerneltask/micropython,selste/micropython,swegener/micropython,pozetroninc/micropython,adafruit/micropython,pramasoul/micropython,trezor/micropython,trezor/micropython,pramasoul/micropython,kerneltask/micropython,adafruit/circuitpython,tralamazza/micropython,pramasoul/micropython,dmazzella/micropython,swegener/micropython,kerneltask/micropython,swegener/micropython,adafruit/micropython,pfalcon/micropython,adafruit/circuitpython,pozetroninc/micropython,tralamazza/micropython,pfalcon/micropython,selste/micropython,MrSurly/micropython,kerneltask/micropython,pozetroninc/micropython,henriknelson/micropython,tobbad/micropython,tobbad/micropython,trezor/micropython,MrSurly/micropython,selste/micropython,tralamazza/micropython,bvernoux/micropython,selste/micropython,adafruit/micropython,bvernoux/micropython,adafruit/circuitpython,ryannathans/micropython,pfalcon/micropython,bvernoux/micropython,selste/micropython,kerneltask/micropython,adafruit/micropython,pfalcon/micropython,bvernoux/micropython,pfalcon/micropython,trezor/micropython,tobbad/micropython,dmazzella/micropython,henriknelson/micropython,adafruit/circuitpython,MrSurly/micropython,tralamazza/micropython,pramasoul/micropython,ryannathans/micropython,ryannathans/micropython,tobbad/micropython,bvernoux/micropython,ryannathans/micropython,dmazzella/micropython,trezor/micropython,dmazzella/micropython,MrSurly/micropython,adafruit/micropython,henriknelson/micropython