* legoscia/erl-make-exit-code:
  Make erl -make return non-zero exit code on failure

OTP-13107

This makes it behave like similar Unix tools.

This is introduced by ab435488a.

If a module includes lines which are less than 1, for example a module
which includes `eunit.hrl`, its cover output file misses the coverage lines.

* gomoripeti/tools/cover-no-beam/OTP-12806:
  cover: handle undefined module when analysing to file

It is possible that not just the source but even the beam of a module
is not available when calling analyse_to_file.

For example when coverdata is imported from an old file and since then
a module was removed.

Before this fix cover:analyse_to_file/3 could possibly never return
because of a helper process crashed with error:undef and never reply
to the caller.

At the same time link the helper process to cover_server so any
further error won't let the caller waiting indefinitely.

If not unstuck: faulty error messages will appear in error_logger_warn_SUITE.

Applications that use the new erl_anno module are depending on STDLIB 2.5.

Note that CosNotification, Megaco, SNMP, Xmerl, and Parsetools use the
erl_anno module via the Yecc parsers only (the header file in
lib/parsetools/include/yeccpre.hrl calls the erl_anno module).

HiPE does not call the erl_anno module, but uses an exported type.
We have chosen to make HiPE dependent on the erl_anno module.