"Suspend all threads" options doesn't work with Python 3 (PY-20052)
"Suspend all threads" options doesn't work with Python 3 (PY-20052)

When processing suspend command we should force to overwrite the previous trace function with Python 3

(cherry picked from commit eba4621)

fabioz/PyDev.Debugger,Elizaveta239/PyDev.Debugger,Elizaveta239/PyDev.Debugger,Elizaveta239/PyDev.Debugger,fabioz/PyDev.Debugger,fabioz/PyDev.Debugger,fabioz/PyDev.Debugger,Elizaveta239/PyDev.Debugger,Elizaveta239/PyDev.Debugger,fabioz/PyDev.Debugger