tests: Use OBJ_REPR_B compatible mpy file headers.

Signed-off-by: Jeff Epler <jepler@gmail.com>

tests/extmod/vfs_rom.py

@@ -25,7 +25,7 @@ SEEK_END = 2
 # An mpy file with four constant objects: str, bytes, long-int, float.
 test_mpy = (
     # header
-    b"M\x06\x00\x1f"  # mpy file header
+    b"M\x06\x00\x1e"  # mpy file header
     b"\x06"  # n_qstr
     b"\x05"  # n_obj
     # qstrs

tests/micropython/import_mpy_native.py

@@ -53,11 +53,11 @@ class UserFS:
 
 
 # these are the test .mpy files
-valid_header = bytes([77, 6, mpy_arch, 31])
+valid_header = bytes([77, 6, mpy_arch, 30])
 # fmt: off
 user_files = {
     # bad architecture (mpy_arch needed for sub-version)
-    '/mod0.mpy': bytes([77, 6, 0xfc | mpy_arch, 31]),
+    '/mod0.mpy': bytes([77, 6, 0xfc | mpy_arch, 30]),
 
     # test loading of viper and asm
     '/mod1.mpy': valid_header + (

tests/perf_bench/core_import_mpy_multi.py

@@ -23,7 +23,7 @@ def f():
     x = ("const tuple", None, False, True, 1, 2, 3)
 result = 123
 """
-file_data = b'M\x06\x00\x1f\x14\x03\x0etest.py\x00\x0f\x02A\x00\x02f\x00\x0cresult\x00/-5#\x82I\x81{\x81w\x82/\x81\x05\x81\x17Iom\x82\x13\x06arg\x00\x05\x1cthis will be a string object\x00\x06\x1bthis will be a bytes object\x00\n\x07\x05\x0bconst tuple\x00\x01\x02\x03\x07\x011\x07\x012\x07\x013\x81\\\x10\n\x01\x89\x07d`T2\x00\x10\x024\x02\x16\x022\x01\x16\x03"\x80{\x16\x04Qc\x02\x81d\x00\x08\x02(DD\x11\x05\x16\x06\x10\x02\x16\x072\x00\x16\x082\x01\x16\t2\x02\x16\nQc\x03`\x1a\x08\x08\x12\x13@\xb1\xb0\x18\x13Qc@\t\x08\t\x12` Qc@\t\x08\n\x12``Qc\x82@ \x0e\x03\x80\x08+)##\x12\x0b\x12\x0c\x12\r\x12\x0e*\x04Y\x12\x0f\x12\x10\x12\x11*\x03Y#\x00\xc0#\x01\xc0#\x02\xc0Qc'
+file_data = b'M\x06\x00\x1e\x14\x03\x0etest.py\x00\x0f\x02A\x00\x02f\x00\x0cresult\x00/-5#\x82I\x81{\x81w\x82/\x81\x05\x81\x17Iom\x82\x13\x06arg\x00\x05\x1cthis will be a string object\x00\x06\x1bthis will be a bytes object\x00\n\x07\x05\x0bconst tuple\x00\x01\x02\x03\x07\x011\x07\x012\x07\x013\x81\\\x10\n\x01\x89\x07d`T2\x00\x10\x024\x02\x16\x022\x01\x16\x03"\x80{\x16\x04Qc\x02\x81d\x00\x08\x02(DD\x11\x05\x16\x06\x10\x02\x16\x072\x00\x16\x082\x01\x16\t2\x02\x16\nQc\x03`\x1a\x08\x08\x12\x13@\xb1\xb0\x18\x13Qc@\t\x08\t\x12` Qc@\t\x08\n\x12``Qc\x82@ \x0e\x03\x80\x08+)##\x12\x0b\x12\x0c\x12\r\x12\x0e*\x04Y\x12\x0f\x12\x10\x12\x11*\x03Y#\x00\xc0#\x01\xc0#\x02\xc0Qc'
 
 
 class File(io.IOBase):