[PATCH 1/2] Re-work level setting on checks code

[Jon Loeliger]

> Currently each of the semantic checks in checks.c has a "level" between
> IGNORE and ERROR.  This single level makes it awkward to implement the
> semantics we want for toggling the checks on the command line.
> 
> This patch reworks the code to instead have separate boolean flags for
> warning and error.  At present having both flags set will have the same
> effect as having just the error flag set, but this can change in the
> future.
> 
> Signed-off-by: David Gibson <david at gibson.dropbear.id.au>

Applied.

Thanks,
jdl