sqf: optimize _this call

[BrettMayson]

• Optimizes _this call to just call
• Off by default lint

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 69.30693% with 31 lines in your changes missing coverage. Please review.

Project coverage is 68.2%. Comparing base (4d93c00) to head (e33cdc5). Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
libs/sqf/src/analyze/lints/s22_this_call.rs	74.1%	24 Missing :warning:
libs/sqf/src/compiler/optimizer/mod.rs	12.5%	7 Missing :warning:

Additional details and impacted files

| [Files with missing lines](https://app.codecov.io/gh/BrettMayson/HEMTT/pull/802?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Brett) | Coverage Δ | | |---|---|---| | [libs/sqf/src/compiler/optimizer/mod.rs](https://app.codecov.io/gh/BrettMayson/HEMTT/pull/802?src=pr&el=tree&filepath=libs%2Fsqf%2Fsrc%2Fcompiler%2Foptimizer%2Fmod.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Brett#diff-bGlicy9zcWYvc3JjL2NvbXBpbGVyL29wdGltaXplci9tb2QucnM=) | `78.8% <12.5%> (-1.9%)` | :arrow_down: | | [libs/sqf/src/analyze/lints/s22\_this\_call.rs](https://app.codecov.io/gh/BrettMayson/HEMTT/pull/802?src=pr&el=tree&filepath=libs%2Fsqf%2Fsrc%2Fanalyze%2Flints%2Fs22_this_call.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Brett#diff-bGlicy9zcWYvc3JjL2FuYWx5emUvbGludHMvczIyX3RoaXNfY2FsbC5ycw==) | `74.1% <74.1%> (ø)` | |