py/objstr: Consolidate methods for str/bytes/bytearray/array.

This commit adds the bytes methods to bytearray, matching CPython.  The
existing implementations of these methods for str/bytes are reused for
bytearray with minor updates to match CPython return types.

For details on the CPython behaviour see
https://docs.python.org/3/library/stdtypes.html#bytes-and-bytearray-operations

The work to merge locals tables for str/bytes/bytearray/array was done by
@jimmo.  Because of this merging of locals the change in code size for this
commit is mostly negative:

       bare-arm:    +0 +0.000%
    minimal x86:   +29 +0.018%
       unix x64:  -792 -0.128% standard[incl -448(data)]
    unix nanbox:  -436 -0.078% nanbox[incl -448(data)]
          stm32:   -40 -0.010% PYBV10
         cc3200:   -32 -0.017%
        esp8266:   -28 -0.004% GENERIC
          esp32:   -72 -0.005% GENERIC[incl -200(data)]
         mimxrt:   -40 -0.011% TEENSY40
     renesas-ra:   -40 -0.006% RA6M2_EK
            nrf:   -16 -0.009% pca10040
            rp2:   -64 -0.013% PICO
           samd:  +148 +0.105% ADAFRUIT_ITSYBITSY_M4_EXPRESS

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/basics/bytearray_byte_operations.py b/tests/basics/bytearray_byte_operations.py
new file mode 100644
index 0000000000..7ce53cac53
--- /dev/null
+++ b/tests/basics/bytearray_byte_operations.py
@@ -0,0 +1,35 @@
+# test bytearray with its re-use of byte functions
+
+print(bytearray(b"hello world").find(b"ll"))
+print(bytearray(b"hello\x00world").rfind(b"l"))
+
+print(bytearray(b"abc  efg ").strip(b"g a"))
+print(bytearray(b"   spacious   ").lstrip())
+print(bytearray(b"www.example.com").lstrip(b"cmowz."))
+print(bytearray(b"   spacious   ").rstrip())
+print(bytearray(b"mississippi").rstrip(b"ipz"))
+
+print(bytearray(b"abc").split(b"a"))
+print(bytearray(b"abcabc").rsplit(b"bc"))
+
+print(bytearray(b"asdfasdf").replace(b"a", b"b"))
+
+print("00\x0000".index("0", 0))
+print("00\x0000".index("0", 3))
+print("00\x0000".rindex("0", 0))
+print("00\x0000".rindex("0", 3))
+
+print(bytearray(b"foobar").endswith(b"bar"))
+print(bytearray(b"1foo").startswith(b"foo", 1))
+
+print(bytearray(b" T E \x00 S T").lower())
+print(bytearray(b" te \x00 st").upper())
+
+print(bytearray(b" \t\n\r\v\f").isspace())
+print(bytearray(b"this ").isalpha())
+print(bytearray(b"0123456789").isdigit())
+print(bytearray(b"AB").isupper())
+print(bytearray(b"cheese-cake").islower())
+
+print(bytearray(b",").join((bytearray(b"abc"), bytearray(b"def"))))
+print(type(bytearray(b",").join((b"a", b"b", b"c"))))