[9.x] Add source file to Collection's dd method output

[hasyirin]

This pull request further extends #44211 by @nunomaduro to work on Collection by adding the source file/line to the dd output of the Collection class method.

After using the improved dd, I found it odd that Collection class dd method did not give the same output as the current improved dd function. The workaround was to wrap the collection variable with dd instead of using the built in dd method of Collection class.

[nunomaduro]

@AhrimFakhriy you think you can create a static property of the trait, that key value map with (name => traceKey), so we can extend this work to other files?

[hasyirin]

@nunomaduro will this suffice?

[nunomaduro]

This changes work on Windows due the different separator?

[nunomaduro]

@AhrimFakhriy Can you check my question please? I will move this pull request out of draft, once I think is ready.

[hasyirin]

@nunomaduro Im sorry, I didnt know I'm not supposed to click on the "Ready for review" button myself.
As for your question, I added in a str_replace which replace the slash to DIRECTORY_SEPARATOR in the loops which should make it work for Windows, and I've tried on both Linux & Windows.