reachable
*typescript-throw.ts:18
    throw Error('an exception');
          ^
Error: an exception
    at branch (*typescript-throw.js:20:15)
        -> *typescript-throw.ts:18:11
    at Object.<anonymous> (*typescript-throw.js:26:1)
        -> *typescript-throw.ts:24:1
    at Module._compile (node:internal/modules/cjs/loader:*)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:*)
    at Module.load (node:internal/modules/cjs/loader:*)
    at Function.Module._load (node:internal/modules/cjs/loader:*)
    at Module.require (node:internal/modules/cjs/loader:*)
    at require (node:internal/modules/cjs/helpers:*)
    at Object.<anonymous> (*source_map_throw_catch.js:6:3)
    at Module._compile (node:internal/modules/cjs/loader:*)