Don't search the file system for node: modules

[amcasey]

Running tsc on this .ts file results in a number of unnecessary file system accesses

import * as fs from "node:fs";

fs.chmod; // Prevent it from being unused

On my box, it searches

/home/amcasey/repos/perf_utils/node_modules/node:fs
/home/amcasey/repos/perf_utils/node_modules/node:fs.ts
/home/amcasey/repos/perf_utils/node_modules/node:fs.tsx
/home/amcasey/repos/perf_utils/node_modules/node:fs.d.ts
/home/amcasey/repos/perf_utils/node_modules/@types/node:fs
/home/amcasey/repos/perf_utils/node_modules/@types/node:fs.d.ts
/home/amcasey/repos/perf_utils/node_modules/node:fs.js
/home/amcasey/repos/perf_utils/node_modules/node:fs.jsx

Since file system access has been a performance bottleneck in the past, it would be nice to avoid these checks.

(Caveat: Linux actually allows colons in file names, so this would technically change the resolution behavior. I can't tell whether it's by-design or not that it might find node:fs.ts on disk.)

[amcasey]

@weswigham has thoughts (including that @rbuckton is probably the expert)

[amcasey]

I also tried import fs = require("node:fs") - it worked the same.