AcceptorConfiguration is a struct

Summary: All these setters and getters -- just make it a struct!

Reviewed By: @praveenr

Differential Revision: D1526499
Makes <<__Memoize>> work for functions with args of certain types

Summary: Right now, this only works with arguments whose types can safely be used as array keys without conversion. Arbitrary params will come in the next diff.

Reviewed By: @jano

Differential Revision: D1515148
Fix inst_meth example in hhi comment

Summary: `inst_meth` doesn't work on `private` anything due to runtime
restrictions.

Reviewed By: @pikatchu, @elgenie

Differential Revision: D1531767
flakeylist copy_variation6

Summary: It failed on D1479623?id=4938785

Reviewed By: @paulbiss

Differential Revision: D1531609
Fix some crashes in hphpd

Summary: There are plenty of cores showing what is clearly the result of
popping an element from an empty stack, so guard popActiveLineBreak().

getActiveLineBreak() already checks for size() == 0, and is usually followed up
by a call to setActiveLineBreak(), which does not. So fix that too.

Reviewed By: @edwinsmith

Differential Revision: D1533549
Let's not rely on explicit HHVM version numbers in xdebug tests

Summary: We bump the version number quite a bit. Let's not hardcode them in the xdebug tests

Reviewed By: @ptarjan

Differential Revision: D1534339
Clean up printing functions & some const usage in vasm

Summary: Rename some printing functions to be more consistent with the rest of
the jit, make them work with const references, and move function declarations
to vasm-print.h to match the definitions in vasm-print.cpp.

Reviewed By: @edwinsmith

Differential Revision: D1532792
Version bump to 3.4.0-dev

Summary: We are cutting the 3.3.0 release. I am bumping the external version for the HHVM-3.3 branch to 3.3.0. Now, bump the internal version to 3.4.0-dev to get ready for the next one.

Reviewed By: @ptarjan

Differential Revision: D1532428
Document hh_client --auto-complete

Summary: Closes https://github.com/facebook/hhvm/pull/3657

Reviewed By: @JoelMarcey

Differential Revision: D1534255
Make RUSAGE_THREAD available to getrusage PHP function

Summary: The signature of the PHP function is getrusage( [ int $who = 0 ] ).
In both HHVM and PHP5, $who can be 1 to request RUSAGE_CHILDREN data. This
change allows $who to be 2 to request RUSAGE_THREAD data. RUSAGE_THREAD
measures resource usage for just the calling thread.

This allows HHVM PHP code to measure resource usage for the current request.
(In PHP5 this can be done with RUSAGE_SELF, by dint of the threading model.)
Closes https://github.com/facebook/hhvm/pull/3632

Reviewed By: @JoelMarcey

Differential Revision: D1530059