POSIX leaves undefined the order of output if stderr is injected into stdout,
and in practice it differs on Windows (Linux buffers both streams separately,
Windows interleaves them as they arrive without buffering).
This should help testing on other platforms
While working on #392, I noticed that the macro-@ test (as well
as the line-continuation test, but for that one see #393)
printed an additional '@(-1)' entry which doesn't make sense.
Due to recent changes, lots of tests generated a slightly different
error output.
- bank-noexist : This test doesn't generate any error output now as
unknown labels are left for the linker to resolve.
- null-in-macro : This test used to crash. Now, the parser verifies that
a MACRO ends in ENDM, generating an error message if not.
Signed-off-by: AntonioND <antonio_nd@outlook.com>