* Add tests for keyed integer assignemnt
* First pass to get keyed integer assignment working
* Fix array assignment to object-like with different key type
* Improve treatment of objectlikes for callable and iterable comparisons
* Fix array assignment to strings and addition
* Convert expression to CNF
* Do better at merging property types
* Fix array_rand key type
* Group changes
* Don’t worry about vars defined before exiting
* Fix issues with vars defined in conditionals
* Add failing test
* Only add failed reconciliation flag if nothing could be salvaged
* Avoid notice when removing clauses
* Improve handling of loops
* Fix evaluation of binary op expressions
* Remove unset vars from outer context after loop
* Ignore RedundantCondition in some more configs
* Rewriting and streamlining every unit test with data providers.
All unit tests have been rewritten into PHPUnit data providers
to reduce the amount of unnecessary code-reuse through out the
test suite.
