path: remove StringPrototypeCharCodeAt from some methods of posix

[HBSPS]

                                                                          confidence improvement accuracy (*)   (**)  (***)
path/normalize-posix.js n=100000 path='.'                                        ***      7.77 %       ±1.84% ±2.44% ±3.18%
path/normalize-posix.js n=100000 path=''                                                  3.09 %       ±4.67% ±6.27% ±8.28%
path/normalize-posix.js n=100000 path='/../'                                       *      2.57 %       ±1.97% ±2.62% ±3.41%
path/normalize-posix.js n=100000 path='/foo'                                       *      2.54 %       ±1.94% ±2.57% ±3.35%
path/normalize-posix.js n=100000 path='/foo/bar'                                          1.30 %       ±1.99% ±2.65% ±3.45%
path/normalize-posix.js n=100000 path='/foo/bar//baz/asdf/quux/..'                        0.70 %       ±1.78% ±2.37% ±3.08%
path/parse-posix.js n=100000 path=''                                                     -0.82 %       ±2.25% ±2.99% ±3.90%
path/parse-posix.js n=100000 path='/'                                             **      2.35 %       ±1.62% ±2.16% ±2.81%
path/parse-posix.js n=100000 path='/foo'                                           *      2.01 %       ±1.95% ±2.59% ±3.37%
path/parse-posix.js n=100000 path='/foo/bar.baz'                                  **      1.66 %       ±1.22% ±1.62% ±2.11%
path/parse-posix.js n=100000 path='/foo/bar/baz/asdf/.quux'                               0.74 %       ±1.46% ±1.95% ±2.53%
path/parse-posix.js n=100000 path='foo/.bar.baz'                                         -0.93 %       ±1.32% ±1.76% ±2.29%
path/parse-posix.js n=100000 path='foo/bar'                                               1.32 %       ±1.36% ±1.82% ±2.37%
path/resolve-posix.js n=100000 paths=''                                                   1.57 %       ±2.29% ±3.06% ±4.04%
path/resolve-posix.js n=100000 paths='|'                                          **      1.10 %       ±0.78% ±1.03% ±1.34%
path/resolve-posix.js n=100000 paths='a/b/c/|../../..'                                    0.47 %       ±0.71% ±0.95% ±1.23%
path/resolve-posix.js n=100000 paths='foo/bar|/tmp/file/|..|a/../subfile'                -0.00 %       ±1.20% ±1.60% ±2.08%

Refs: #54546

[avivkeller]

IMO the commit message / title is a bit misleading, as this isn't removing the primordial everywhere, maybe reword?

[avivkeller]

Maybe rename this variable to char?

[HBSPS]

I applied it!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.33%. Comparing base (0b120af) to head (317684d).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #54668   +/-   ##
=======================================
  Coverage   87.33%   87.33%           
=======================================
  Files         650      650           
  Lines      182842   182839    -3     
  Branches    35067    35059    -8     
=======================================
+ Hits       159683   159688    +5     
- Misses      16418    16424    +6     
+ Partials     6741     6727   -14     

Files with missing lines	Coverage Δ
lib/path.js	95.16% <100.00%> (-0.01%)	⬇️

... and 26 files with indirect coverage changes

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/61752/

Benchmark CI (path): https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1628/

Results

                                                                                                                       confidence improvement accuracy (*)   (**)  (***)
path/basename-posix.js n=100000 pathext=''                                                                                             0.87 %       ±1.40% ±1.86% ±2.43%
path/basename-posix.js n=100000 pathext='/'                                                                                           -0.54 %       ±0.99% ±1.32% ±1.72%
path/basename-posix.js n=100000 pathext='/foo'                                                                                         0.10 %       ±1.00% ±1.33% ±1.73%
path/basename-posix.js n=100000 pathext='/foo/.bar.baz'                                                                                1.96 %       ±2.36% ±3.17% ±4.17%
path/basename-posix.js n=100000 pathext='/foo/.bar.baz|.baz'                                                                           1.29 %       ±2.28% ±3.04% ±3.96%
path/basename-posix.js n=100000 pathext='/foo/bar/baz/asdf/quux.html'                                                                  0.93 %       ±1.70% ±2.27% ±2.97%
path/basename-posix.js n=100000 pathext='/foo/bar/baz/asdf/quux.html|.html'                                                           -1.84 %       ±2.77% ±3.69% ±4.82%
path/basename-posix.js n=100000 pathext='foo'                                                                                         -0.41 %       ±0.86% ±1.14% ±1.49%
path/basename-posix.js n=100000 pathext='foo/bar.'                                                                                    -0.26 %       ±0.56% ±0.74% ±0.96%
path/basename-posix.js n=100000 pathext='foo/bar.|.'                                                                                  -0.59 %       ±1.95% ±2.59% ±3.38%
path/basename-win32.js n=100000 pathext=''                                                                                             0.29 %       ±1.86% ±2.49% ±3.25%
path/basename-win32.js n=100000 pathext='\\\\foo\\\\bar\\\\baz\\\\asdf\\\\quux.html'                                                   0.77 %       ±2.20% ±2.93% ±3.82%
path/basename-win32.js n=100000 pathext='\\\\foo\\\\bar\\\\baz\\\\asdf\\\\quux.html|.html'                                             1.60 %       ±3.41% ±4.54% ±5.91%
path/basename-win32.js n=100000 pathext='C:\\\\'                                                                                       0.72 %       ±1.16% ±1.55% ±2.04%
path/basename-win32.js n=100000 pathext='C:\\\\foo'                                                                                    0.25 %       ±0.61% ±0.81% ±1.05%
path/basename-win32.js n=100000 pathext='D:\\\\foo\\\\.bar.baz'                                                                       -0.54 %       ±1.71% ±2.27% ±2.96%
path/basename-win32.js n=100000 pathext='E:\\\\foo\\\\.bar.baz|.baz'                                                            *     -2.18 %       ±1.82% ±2.45% ±3.24%
path/basename-win32.js n=100000 pathext='foo'                                                                                         -0.20 %       ±0.97% ±1.29% ±1.68%
path/basename-win32.js n=100000 pathext='foo\\\\bar.'                                                                                 -0.57 %       ±1.32% ±1.76% ±2.30%
path/basename-win32.js n=100000 pathext='foo\\\\bar.|.'                                                                               -0.70 %       ±2.54% ±3.39% ±4.41%
path/dirname-posix.js n=100000 path=''                                                                                                -0.00 %       ±1.67% ±2.23% ±2.90%
path/dirname-posix.js n=100000 path='/'                                                                                               -0.35 %       ±1.02% ±1.36% ±1.78%
path/dirname-posix.js n=100000 path='/foo'                                                                                            -0.93 %       ±1.96% ±2.62% ±3.44%
path/dirname-posix.js n=100000 path='/foo/bar'                                                                                        -0.17 %       ±0.79% ±1.05% ±1.37%
path/dirname-posix.js n=100000 path='/foo/bar/baz/asdf/quux'                                                                          -0.54 %       ±1.05% ±1.40% ±1.82%
path/dirname-posix.js n=100000 path='foo'                                                                                             -0.08 %       ±1.57% ±2.09% ±2.72%
path/dirname-posix.js n=100000 path='foo/bar'                                                                                         -0.34 %       ±0.89% ±1.19% ±1.55%
path/dirname-win32.js n=100000 path=''                                                                                                -0.68 %       ±0.99% ±1.32% ±1.72%
path/dirname-win32.js n=100000 path='\\\\'                                                                                             1.61 %       ±2.17% ±2.92% ±3.85%
path/dirname-win32.js n=100000 path='\\\\foo'                                                                                         -0.62 %       ±0.72% ±0.96% ±1.25%
path/dirname-win32.js n=100000 path='C:\\\\foo\\\\bar'                                                                                -0.30 %       ±2.13% ±2.84% ±3.70%
path/dirname-win32.js n=100000 path='D:\\\\foo\\\\bar\\\\baz\\\\asdf\\\\quux'                                                          0.48 %       ±2.28% ±3.03% ±3.94%
path/dirname-win32.js n=100000 path='foo'                                                                                              0.89 %       ±1.60% ±2.14% ±2.80%
path/dirname-win32.js n=100000 path='foo\\\\bar'                                                                                      -0.84 %       ±0.98% ±1.31% ±1.70%
path/extname-posix.js n=100000 path=''                                                                                                -0.61 %       ±2.04% ±2.72% ±3.56%
path/extname-posix.js n=100000 path='/'                                                                                               -0.25 %       ±1.98% ±2.65% ±3.48%
path/extname-posix.js n=100000 path='/foo'                                                                                             1.16 %       ±1.56% ±2.08% ±2.72%
path/extname-posix.js n=100000 path='/foo/bar/baz/asdf/quux.foobarbazasdfquux'                                                         2.47 %       ±2.60% ±3.47% ±4.54%
path/extname-posix.js n=100000 path='/foo/bar/baz/asdf/quux'                                                                           0.76 %       ±1.88% ±2.50% ±3.26%
path/extname-posix.js n=100000 path='foo/.bar.baz'                                                                                     0.41 %       ±0.99% ±1.31% ±1.71%
path/extname-posix.js n=100000 path='foo/bar/...baz.quux'                                                                             -0.35 %       ±1.85% ±2.49% ±3.28%
path/extname-posix.js n=100000 path='foo/bar/..baz.quux'                                                                              -0.47 %       ±1.35% ±1.82% ±2.39%
path/extname-posix.js n=100000 path='index.html'                                                                               **      1.00 %       ±0.60% ±0.80% ±1.04%
path/extname-posix.js n=100000 path='index'                                                                                   ***     -5.27 %       ±1.75% ±2.34% ±3.05%
path/extname-win32.js n=100000 path=''                                                                                                -1.48 %       ±2.48% ±3.29% ±4.29%
path/extname-win32.js n=100000 path='\\\\'                                                                                             0.06 %       ±1.80% ±2.40% ±3.13%
path/extname-win32.js n=100000 path='\\\\foo\\\\bar\\\\baz\\\\asdf\\\\quux.foobarbazasdfquux'                                          0.51 %       ±2.10% ±2.80% ±3.64%
path/extname-win32.js n=100000 path='C:\\\\foo'                                                                                       -0.72 %       ±1.56% ±2.08% ±2.72%
path/extname-win32.js n=100000 path='D:\\\\foo\\\\bar\\\\baz\\\\asdf\\\\quux'                                                   *     -0.52 %       ±0.46% ±0.62% ±0.80%
path/extname-win32.js n=100000 path='foo\\\\.bar.baz'                                                                           *      2.30 %       ±2.03% ±2.71% ±3.57%
path/extname-win32.js n=100000 path='foo\\\\bar\\\\...baz.quux'                                                                       -0.10 %       ±1.98% ±2.64% ±3.44%
path/extname-win32.js n=100000 path='foo\\\\bar\\\\..baz.quux'                                                                         0.11 %       ±0.58% ±0.77% ±1.00%
path/extname-win32.js n=100000 path='index.html'                                                                                      -0.06 %       ±0.96% ±1.28% ±1.67%
path/extname-win32.js n=100000 path='index'                                                                                            0.37 %       ±1.52% ±2.03% ±2.65%
path/format-posix.js n=1000000 props='/|/home/user/dir|index.html|.html|index'                                                        -0.14 %       ±1.22% ±1.62% ±2.11%
path/format-win32.js n=1000000 props='C:\\\\|C:\\\\path\\\\dir|index.html|.html|index'                                                 0.69 %       ±0.74% ±0.98% ±1.28%
path/isAbsolute-posix.js n=100000 path='.'                                                                                            -1.76 %       ±2.27% ±3.04% ±4.00%
path/isAbsolute-posix.js n=100000 path=''                                                                                             -2.44 %       ±3.69% ±4.91% ±6.39%
path/isAbsolute-posix.js n=100000 path='/baz/..'                                                                                       0.18 %       ±1.57% ±2.09% ±2.73%
path/isAbsolute-posix.js n=100000 path='/foo/bar'                                                                                     -0.33 %       ±1.39% ±1.85% ±2.42%
path/isAbsolute-posix.js n=100000 path='bar/baz'                                                                                      -1.74 %       ±1.98% ±2.66% ±3.51%
path/isAbsolute-win32.js n=100000 path='.'                                                                                            -0.38 %       ±1.10% ±1.47% ±1.91%
path/isAbsolute-win32.js n=100000 path=''                                                                                             -0.38 %       ±1.39% ±1.85% ±2.40%
path/isAbsolute-win32.js n=100000 path='//server'                                                                                     -0.09 %       ±0.83% ±1.10% ±1.43%
path/isAbsolute-win32.js n=100000 path='bar\\\\baz'                                                                                    0.42 %       ±1.31% ±1.75% ±2.29%
path/isAbsolute-win32.js n=100000 path='C:\\\\baz\\\\..'                                                                               0.87 %       ±1.38% ±1.84% ±2.41%
path/isAbsolute-win32.js n=100000 path='C:baz\\\\..'                                                                                   0.12 %       ±0.70% ±0.93% ±1.22%
path/join-posix.js n=100000 paths='/foo|bar||baz/asdf|quux|..'                                                                         0.16 %       ±0.88% ±1.17% ±1.53%
path/join-win32.js n=100000 paths='C:\\\\foo|bar||baz\\\\asdf|quux|..'                                                                -0.86 %       ±0.89% ±1.19% ±1.56%
path/makeLong-win32.js n=100000 path='\\\\\\\\?\\\\foo'                                                                               -0.09 %       ±0.84% ±1.11% ±1.45%
path/makeLong-win32.js n=100000 path='\\\\\\\\foo\\\\bar'                                                                             -0.74 %       ±1.51% ±2.03% ±2.66%
path/makeLong-win32.js n=100000 path='C:\\\\foo'                                                                                       0.08 %       ±1.24% ±1.66% ±2.17%
path/makeLong-win32.js n=100000 path='foo\\\\bar'                                                                                      0.61 %       ±0.71% ±0.95% ±1.24%
path/normalize-posix.js n=100000 path='.'                                                                                     ***      3.54 %       ±1.08% ±1.44% ±1.88%
path/normalize-posix.js n=100000 path=''                                                                                      ***     -4.41 %       ±1.27% ±1.69% ±2.19%
path/normalize-posix.js n=100000 path='/../'                                                                                  ***      3.22 %       ±1.35% ±1.81% ±2.38%
path/normalize-posix.js n=100000 path='/foo'                                                                                          -0.31 %       ±1.50% ±1.99% ±2.60%
path/normalize-posix.js n=100000 path='/foo/bar'                                                                                *      2.67 %       ±2.58% ±3.43% ±4.46%
path/normalize-posix.js n=100000 path='/foo/bar//baz/asdf/quux/..'                                                                     0.28 %       ±1.29% ±1.72% ±2.26%
path/normalize-win32.js n=100000 path='.'                                                                                             -0.49 %       ±2.45% ±3.26% ±4.25%
path/normalize-win32.js n=100000 path=''                                                                                        *      2.28 %       ±2.19% ±2.93% ±3.82%
path/normalize-win32.js n=100000 path='C:\\\\..\\\\'                                                                                  -0.66 %       ±1.32% ±1.76% ±2.30%
path/normalize-win32.js n=100000 path='C:\\\\foo'                                                                                     -0.18 %       ±2.00% ±2.66% ±3.47%
path/normalize-win32.js n=100000 path='C:\\\\foo\\\\bar'                                                                               1.10 %       ±1.36% ±1.83% ±2.41%
path/normalize-win32.js n=100000 path='C:\\\\foo\\\\bar\\\\\\\\baz\\\\asdf\\\\quux\\\\..'                                              0.51 %       ±0.88% ±1.18% ±1.53%
path/parse-posix.js n=100000 path=''                                                                                          ***     -6.49 %       ±2.15% ±2.88% ±3.77%
path/parse-posix.js n=100000 path='/'                                                                                           *      1.60 %       ±1.35% ±1.80% ±2.36%
path/parse-posix.js n=100000 path='/foo'                                                                                      ***     -3.34 %       ±1.22% ±1.64% ±2.15%
path/parse-posix.js n=100000 path='/foo/bar.baz'                                                                                       1.02 %       ±1.54% ±2.05% ±2.68%
path/parse-posix.js n=100000 path='/foo/bar/baz/asdf/.quux'                                                                    **      3.21 %       ±2.19% ±2.91% ±3.79%
path/parse-posix.js n=100000 path='foo/.bar.baz'                                                                                *     -2.75 %       ±2.42% ±3.22% ±4.20%
path/parse-posix.js n=100000 path='foo/bar'                                                                                   ***     -2.99 %       ±1.02% ±1.36% ±1.77%
path/parse-win32.js n=100000 path=''                                                                                                   0.07 %       ±1.83% ±2.43% ±3.17%
path/parse-win32.js n=100000 path='\\\\foo'                                                                                     *      1.36 %       ±1.23% ±1.65% ±2.17%
path/parse-win32.js n=100000 path='\\\\foo\\\\bar\\\\baz\\\\asdf\\\\.quux'                                                            -0.06 %       ±1.54% ±2.04% ±2.66%
path/parse-win32.js n=100000 path='C:\\\\'                                                                                             1.26 %       ±1.60% ±2.14% ±2.82%
path/parse-win32.js n=100000 path='C:\\\\foo'                                                                                         -1.95 %       ±2.43% ±3.24% ±4.25%
path/parse-win32.js n=100000 path='E:\\\\foo\\\\bar.baz'                                                                               0.11 %       ±1.59% ±2.11% ±2.75%
path/parse-win32.js n=100000 path='foo\\\\.bar.baz'                                                                             *      2.16 %       ±2.14% ±2.88% ±3.81%
path/parse-win32.js n=100000 path='foo\\\\bar'                                                                                        -1.81 %       ±2.24% ±2.99% ±3.91%
path/relative-posix.js n=100000 paths='/|/'                                                                                           -0.49 %       ±1.70% ±2.27% ±2.97%
path/relative-posix.js n=100000 paths='/|/var'                                                                                         0.03 %       ±0.98% ±1.31% ±1.71%
path/relative-posix.js n=100000 paths='/data/orandea/test/aaa|/data/orandea/impl/bbb'                                                 -0.01 %       ±0.37% ±0.50% ±0.65%
path/relative-posix.js n=100000 paths='/foo/bar/baz/quux|/'                                                                   ***      1.44 %       ±0.46% ±0.62% ±0.80%
path/relative-posix.js n=100000 paths='/foo/bar/baz/quux|/foo/bar/baz/quux'                                                            3.13 %       ±4.87% ±6.49% ±8.47%
path/relative-posix.js n=100000 paths='/foo/bar/baz/quux|/var/log'                                                            ***      1.10 %       ±0.28% ±0.37% ±0.48%
path/relative-posix.js n=100000 paths='/var|/bin'                                                                             ***      1.85 %       ±0.48% ±0.64% ±0.83%
path/relative-win32.js n=100000 paths='C:\\\\|D:\\\\'                                                                                 -0.69 %       ±1.59% ±2.11% ±2.76%
path/relative-win32.js n=100000 paths='C:\\\\foo\\\\bar\\\\baz\\\\quux|C:\\\\'                                                        -0.44 %       ±0.78% ±1.04% ±1.36%
path/relative-win32.js n=100000 paths='C:\\\\foo\\\\bar\\\\baz|C:\\\\foo\\\\bar\\\\baz'                                                1.37 %       ±2.90% ±3.87% ±5.06%
path/relative-win32.js n=100000 paths='C:\\\\foo\\\\BAR\\\\BAZ|C:\\\\foo\\\\bar\\\\baz'                                        **     -0.59 %       ±0.39% ±0.52% ±0.68%
path/relative-win32.js n=100000 paths='c:\\\\İ\\\\a\\\\İ|c:\\\\İ\\\\b\\\\İ\\\\test.txt|..\\\\..\\\\b\\\\İ\\\\test.txt'         **      0.70 %       ±0.43% ±0.58% ±0.75%
path/relative-win32.js n=100000 paths='C:\\\\orandea\\\\test\\\\aaa|C:\\\\orandea\\\\impl\\\\bbb'                               *      0.66 %       ±0.56% ±0.74% ±0.97%
path/resolve-posix.js n=100000 paths=''                                                                                         *      1.04 %       ±1.04% ±1.38% ±1.80%
path/resolve-posix.js n=100000 paths='|'                                                                                               1.03 %       ±1.56% ±2.07% ±2.70%
path/resolve-posix.js n=100000 paths='a/b/c/|../../..'                                                                                 0.47 %       ±0.58% ±0.77% ±1.00%
path/resolve-posix.js n=100000 paths='foo/bar|/tmp/file/|..|a/../subfile'                                                     ***      3.85 %       ±0.95% ±1.26% ±1.64%
path/resolve-win32.js n=100000 paths=''                                                                                                0.27 %       ±1.18% ±1.57% ±2.04%
path/resolve-win32.js n=100000 paths='|'                                                                                               1.07 %       ±1.38% ±1.84% ±2.40%
path/resolve-win32.js n=100000 paths='c:/blah\\\\blah|d:/games|c:../a'                                                                -0.38 %       ±0.77% ±1.02% ±1.33%
path/resolve-win32.js n=100000 paths='c:/ignore|d:\\\\a/b\\\\c/d|\\\\e.exe'                                                            0.83 %       ±1.46% ±1.95% ±2.56%
path/toNamespacedPath-posix.js n=100000 path='.'                                                                                      -0.84 %       ±4.58% ±6.10% ±7.96%
path/toNamespacedPath-posix.js n=100000 path=''                                                                                        1.31 %       ±3.87% ±5.15% ±6.70%
path/toNamespacedPath-posix.js n=100000 path='/home/node/..'                                                                          -2.75 %       ±3.47% ±4.61% ±6.01%
path/toNamespacedPath-posix.js n=100000 path='/tmp/bar'                                                                               -1.33 %       ±3.71% ±4.93% ±6.42%
path/toNamespacedPath-posix.js n=100000 path='/w/bnch-comp/node/benchmark'                                                            -0.63 %       ±3.48% ±4.63% ±6.03%
path/toNamespacedPath-posix.js n=100000 path='bar/baz'                                                                                -2.64 %       ±3.93% ±5.22% ±6.80%
path/toNamespacedPath-win32.js n=100000 path=''                                                                                       -0.57 %       ±4.44% ±5.91% ±7.70%
path/toNamespacedPath-win32.js n=100000 path='\\\\e.exe'                                                                              -0.51 %       ±1.65% ±2.19% ±2.86%
path/toNamespacedPath-win32.js n=100000 path='\\\\w\\\\bnch-comp\\\\node\\\\benchmark'                                                -0.01 %       ±1.35% ±1.80% ±2.34%
path/toNamespacedPath-win32.js n=100000 path='c:../a'                                                                                 -0.41 %       ±0.90% ±1.20% ±1.57%
path/toNamespacedPath-win32.js n=100000 path='c:/blah\\\\blah'                                                                        -0.35 %       ±1.17% ±1.55% ±2.02%
path/toNamespacedPath-win32.js n=100000 path='c:/ignore'                                                                              -1.67 %       ±1.92% ±2.58% ±3.40%
path/toNamespacedPath-win32.js n=100000 path='d:/games'                                                                               -0.85 %       ±1.80% ±2.39% ±3.13%
path/toNamespacedPath-win32.js n=100000 path='d:\\\\a/b\\\\c/d'                                                                       -0.01 %       ±0.94% ±1.25% ±1.63%

Be aware that when doing many comparisons the risk of a false-positive
result increases. In this case, there are 135 comparisons, you can thus
expect the following amount of false-positive results:
  6.75 false positives, when considering a   5% risk acceptance (*, **, ***),
  1.35 false positives, when considering a   1% risk acceptance (**, ***),
  0.14 false positives, when considering a 0.1% risk acceptance (***)