Add OUTP link field to xRecord
xRecord::process() puts VAL to the OUTP link
jlinkz writes the output value to the record's own PHAS field
Correct the dbFastPutConvertRoutine lookup
Test sets OUTP link, processes record and confirms that PHAS was set
Adds tests to ensure that a record's special() routine can
return an error status that gets fed back to the client from
both before and after special() calls.
This was broken from 3.15 through 7.0.5 inclusive.
