oceani: setting ->parse_error now aborts type analysis.

oceani: setting ->parse_error now aborts type analysis.

When ever we call type_err() or tok_err(), in type analysis,
we currently need to also set *ok=0;  This is uhly and error-prone.

So instead, we can detect ->parse_error being set, and assume
something is no OK.
This is most easily done in a wrapper for propagate_types.

Signed-off-by: NeilBrown <neil@brown.name>