Use jsonc.parse instead of JSON.parse when parsing tsconfig.json, fixing bug where -b flag is not activated when tsconfig.json contains comments.

[Thai Pangsakulyanont (dtinth)]

This fixes a problem where the typescript VSCode task runs tsc with -p
when it should run -b when tsconfig.json has the "references" property.

{
  "extends": "./tsconfig.app.json",
  // meow
  "references": [{ "path": "./tsconfig.lib.json" }]
}

This bug happens because while tsconfig.json file allows comment, the
parsing logic here uses vanilla JSON.parse which cannot parse comments.

This commit fixes it by using jsonc.parse instead.

[Thai Pangsakulyanont (dtinth)]

Edit: It still doesn’t work because tsc requires -b to be passed before --watch,

[Matt Bierner (mjbvz)]

Makes sense. Thanks

I think the argument ordering was just fixed by #67148