Damien George 25ae98f07c py/compile: Combine expr, xor_expr and and_expr into one function.
This and the previous 4 commits combined have change in code size of:

   bare-arm:   -92
minimal x86:  -544
   unix x64:  -544
unix nanbox:  -712
      stm32:  -116
     cc3200:  -128
    esp8266:  -348
      esp32:  -232
2018-06-22 17:00:29 +10:00
..
2017-07-18 11:57:39 +10:00
2017-07-18 11:57:39 +10:00