`ToInteger` doesn't handle all expected cases.

[martin-hughes]

For example, the ASL snippet ToInteger("123abcd") fails with ParseFail(InvalidOperationOnObject { op: ToInteger, typ: String }).

This is masked in the aml_tester test to_integer.asl because iasl optimizes out the call to ToInteger on a string constant. #277 has a little more detail on that (because it adds the -oa flag to iasl which unmasked this bug)

[martin-hughes]

Would be closed by #277 if merged as it is, or let me know if you'd prefer a separate PR.

[IsaacWoods]

Fine to be included in #277 thanks.

uACPI seems to include cases the spec + ACPICA do not including signs, octal, etc. We may want a more comprehensive parser in the future here, but this is definitely an improvement.

[martin-hughes]

Fixed by #277 - at least in the sense that all the previous tests now work.