In SERVER-36103 we added a check to errorcodes.py that no error code is larger than some globally-defined maximum. If this check fails, however, errorcodes.py gives bad instructions.

For example, if MAXIMUM_CODE is 99, the highest error code currently used is 50, and I add an error code 1000, errorcodes.py prints:

EXCESSIVE SKIPPING OF ERROR CODES:
{{ file.cpp:68:25:fassert(1000}}
next id to use: 1001

It should instead print the next id to use, which is 51 in this example.