Asserts active by default in nightlies, incompatible with repo auth

[octmoraru]

Commit d7ce713 activates PHP assertions by default. These are not supported in RepoAuthoritative mode.

For this reason. the oss-performance MediaWiki benchmark fails:

Fatal error: assert() is not supported: assert with strings argument in RepoAuthoritative mode in /tmp/hhvm-nginxHMBBMk/mediawiki/includes/parser/Preprocessor_Hash.php on line 492

Line 492 in Preprocessor_Hash.php contains, as expected, an assert() with string arguments:

// A heading must be open, otherwise \n wouldn't have been in the search list
assert( '$piece->open == "\n"' );
$part = $piece->getCurrentPart();

[fredemmott]

cc @paulbiss: I assume there's a way to disable it? Possibly should also disable it by default when building repos/using repo auth mode, but not sure that silent behavior change would be a good thing.

[fredemmott]

Also, error should probably either give the appropriate ini settings or link to the documentation.

[octmoraru]

Hi. Until this issue is fixed, we'll be running our nightly MediaWiki benchmark with "assertions.active=0" in the INI file: https://lists.01.org/pipermail/langperf/2016-January/000443.html