Remove notices on mysql query failures

Zend only has this sort of behavior when mysql.trace_mode is
enabled, but it's off by default. Since the mysql library is deprecated
and people should be using mysqli, it makes sense to emulate mysqli's
behavior here and not warn at all rather than trying to implement
mysql.trace_mode.

Closes #1140

Reviewed By: @markw65

Differential Revision: D1000998

Pulled By: @scannell
Add some type-related asserts

These will catch some bugs a littler earlier

Reviewed By: @jdelong

Differential Revision: D999631
Fix some uses of JitPGO runtime option

We were incorrectly checking if JitPGO was enabled to skip some things
that are only intended to be skipped during profiling translations.
This was resulting in worse code to be generated in TransLive mode.

Reviewed By: @swtaarrs

Differential Revision: D1004077
Fix nested include files class context propagation

Fix nested include files losing class context

Closes #1009
Closes #1149

Reviewed By: @markw65

Differential Revision: D1004416

Pulled By: @scannell