child_process: refactor to use more primordials

[Lxxyx]

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines

[aduh95]

Thanks for your PR. Please remove the unrelated changes, and I've also let a comment on an optimisation we can make.

[aduh95]

The benchmark suite is crashing before completion, I've opened #36295 to fix that.

[aduh95]

Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/747/console

[aduh95]

Benchmark results:

 confidence improvement accuracy (*) (**) (***) child_process/child-process-params.js params=1 methodName='execFile' n=1000 ** -5.19 % ±3.52% ±4.71% ±6.20% child_process/child-process-params.js params=2 methodName='execFile' n=1000 * -3.18 % ±2.91% ±3.91% ±5.14% child_process/child-process-params.js params=2 methodName='spawn' n=1000 * 2.65 % ±2.61% ±3.48% ±4.54% child_process/child-process-params.js params=2 methodName='spawnSync' n=1000 * -4.32 % ±3.80% ±5.09% ±6.71% child_process/child-process-params.js params=3 methodName='exec' n=1000 * -1.94 % ±1.74% ±2.32% ±3.02% child_process/child-process-read.js dur=5 len=4096 * -10.08 % ±9.24% ±12.30% ±16.01% 

Details

 confidence improvement accuracy (*) (**) (***) child_process/child-process-exec-stdout.js dur=5 len=1024 -0.06 % ±0.30% ±0.40% ±0.53% child_process/child-process-exec-stdout.js dur=5 len=256 0.03 % ±0.20% ±0.27% ±0.35% child_process/child-process-exec-stdout.js dur=5 len=32768 -0.00 % ±0.01% ±0.01% ±0.01% child_process/child-process-exec-stdout.js dur=5 len=4096 0.32 % ±1.14% ±1.51% ±1.97% child_process/child-process-exec-stdout.js dur=5 len=64 0.00 % ±0.01% ±0.01% ±0.01% child_process/child-process-params.js params=1 methodName='execFile' n=1000 ** -5.19 % ±3.52% ±4.71% ±6.20% child_process/child-process-params.js params=1 methodName='execFileSync' n=1000 0.55 % ±5.21% ±6.94% ±9.04% child_process/child-process-params.js params=1 methodName='exec' n=1000 -0.76 % ±1.86% ±2.48% ±3.22% child_process/child-process-params.js params=1 methodName='execSync' n=1000 -1.29 % ±3.62% ±4.82% ±6.29% child_process/child-process-params.js params=1 methodName='spawn' n=1000 -1.42 % ±1.89% ±2.52% ±3.28% child_process/child-process-params.js params=1 methodName='spawnSync' n=1000 -1.87 % ±3.18% ±4.24% ±5.55% child_process/child-process-params.js params=2 methodName='execFile' n=1000 * -3.18 % ±2.91% ±3.91% ±5.14% child_process/child-process-params.js params=2 methodName='execFileSync' n=1000 -1.73 % ±4.37% ±5.81% ±7.57% child_process/child-process-params.js params=2 methodName='exec' n=1000 -0.77 % ±1.80% ±2.39% ±3.11% child_process/child-process-params.js params=2 methodName='execSync' n=1000 0.38 % ±2.58% ±3.44% ±4.48% child_process/child-process-params.js params=2 methodName='spawn' n=1000 * 2.65 % ±2.61% ±3.48% ±4.54% child_process/child-process-params.js params=2 methodName='spawnSync' n=1000 * -4.32 % ±3.80% ±5.09% ±6.71% child_process/child-process-params.js params=3 methodName='execFile' n=1000 -1.41 % ±3.05% ±4.05% ±5.28% child_process/child-process-params.js params=3 methodName='execFileSync' n=1000 -2.51 % ±3.64% ±4.86% ±6.35% child_process/child-process-params.js params=3 methodName='exec' n=1000 * -1.94 % ±1.74% ±2.32% ±3.02% child_process/child-process-params.js params=3 methodName='spawn' n=1000 1.99 % ±2.79% ±3.72% ±4.85% child_process/child-process-params.js params=3 methodName='spawnSync' n=1000 2.45 % ±4.77% ±6.35% ±8.27% child_process/child-process-params.js params=4 methodName='execFile' n=1000 -1.66 % ±2.70% ±3.60% ±4.70% child_process/child-process-read-ipc.js dur=5 len=1024 -0.37 % ±3.09% ±4.11% ±5.34% child_process/child-process-read-ipc.js dur=5 len=1048576 3.12 % ±6.50% ±8.66% ±11.30% child_process/child-process-read-ipc.js dur=5 len=16384 0.53 % ±2.96% ±3.94% ±5.13% child_process/child-process-read-ipc.js dur=5 len=2097152 -6.63 % ±15.90% ±21.20% ±27.70% child_process/child-process-read-ipc.js dur=5 len=256 2.02 % ±3.44% ±4.57% ±5.95% child_process/child-process-read-ipc.js dur=5 len=4096 -0.05 % ±3.52% ±4.68% ±6.09% child_process/child-process-read-ipc.js dur=5 len=64 -2.14 % ±3.01% ±4.02% ±5.25% child_process/child-process-read-ipc.js dur=5 len=65536 -1.26 % ±1.43% ±1.90% ±2.48% child_process/child-process-read.js dur=5 len=1024 -1.59 % ±14.56% ±19.37% ±25.22% child_process/child-process-read.js dur=5 len=256 -5.47 % ±17.60% ±23.45% ±30.58% child_process/child-process-read.js dur=5 len=32768 2.35 % ±15.29% ±20.35% ±26.50% child_process/child-process-read.js dur=5 len=4096 * -10.08 % ±9.24% ±12.30% ±16.01% child_process/child-process-read.js dur=5 len=64 2.21 % ±16.92% ±22.51% ±29.30% child_process/spawn-echo.js n=1000 -0.19 % ±1.63% ±2.17% ±2.82% 

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/34736/ ✅

[github-actions]

Landed in a897a25...f7dd330