[GSoC 2025] Templated Hooks - Weekly Update #8

[AlbertG]

This week I have checked on Rainer's PR [1], helping a bit with 
some failing tests. The PR now seems to be pretty much ready to 
be merged.

I have also created benchmarks for the templatized 
`_d_arrayliteralTX`[2] and AA[3] hooks. The results for [2] ran 
with dmd were pretty good, showing both performance improvements 
and size reductions in the libdruntime/libphobos. I am going to 
run [3] as well, but might wait until the PR is merged. In any 
case, there won't be any conclusive results until the 
modifications are integrated into ldc/gdc and tested with those 
compilers.

[1] https://github.com/dlang/dmd/pull/21066
[2] https://github.com/teodutu/druntime-hooks-benchmarks/pull/5
[3] https://github.com/teodutu/druntime-hooks-benchmarks/pull/6