Dispatcher handlercache

[dschissler]

…a handler hash cache.

Hello! This is another proof of concept PR

• Type: code quality
• Link to issue: Using spl_object_hash() instead of Di::isFreshInstance() in the Dispatcher #13853

In raising this pull request, I confirm the following (please check boxes):

• I have read and understood the Contributing Guidelines?
• I have checked that another pull request for this purpose does not exist.
• I did not write tests for this because a large refactor of the Dispatcher is needed. This is only to remove one small wart. Creating tests at this time would be premature.

This PR is attempting to solve the use of DI::wasFreshInstance in Phalcon\Dispatcher. I think that DI::wasFreshInstance should be completely removed in 4.0.x since it is only used in this one place for this hack. I'm attempting to see if a hash hit map of all handlers seen could be used instead of the use of wasFreshInstance.

I'm attempting to understand everything that would need to be changed to get the Dispatcher to run initialize first every time as first began by @virgofx but wow is it some involved code. I'm not sure that I'm setup to change something so large at this point. So I'm starting small. This PR may never be merged or I could also grow it to be more encompassing.

[niden]

Approving/merging this. Next time though we need tests to be 100% sure that nothing was broken.

Thank you @dschissler

[sergeyklay]

@dschissler I think you can just amend the description of the pull request with something like that "I did not provide tests for the following reasons ...". This is ok :) Anyway thank you for the contributting, and for helping us make Phalcon better.