How to use forks of eshost in eshost-cli

[leotm]

test262-fyi/eshost example (shoutout @CanadaHonk)

➜  gh repo clone bterlson/eshost-cli && cd eshost-cli
# use latest commit: github.com/test262-fyi/eshost/commit/84df3ecc26788cd49dc6be53451336624db98047
➜  sed -i '' 's/"eshost": "\^9.0.0"/"eshost": "git+https:\/\/github.com\/test262-fyi\/eshost.git#84df3ecc26788cd49dc6be53451336624db98047"/' package.json
➜  sed -i '' 's/"version": "9.0.0"/"version": "9.0.0-alpha"/' package.json
➜  npm pack
➜  npm uninstall -g eshost-cli
➜  npm install -g eshost-cli-9.0.0-alpha.tgz
➜  cd .. && rm -rf eshost-cli # good neighbours clean up
➜  npm list -g eshost-cli # eshost-cli@9.0.0-alpha 🎉

(or to keep the repo locally for monkey patching via symlink)

➜  gh repo clone bterlson/eshost-cli && cd eshost-cli
➜  sed -i '' 's/"eshost": "\^9.0.0"/"eshost": "git+https:\/\/github.com\/test262-fyi\/eshost.git#84df3ecc26788cd49dc6be53451336624db98047"/' package.json
➜  sed -i '' 's/"version": "9.0.0"/"version": "9.0.0-alpha"/' package.json
➜  npm uninstall -g eshost-cli
➜  npm install -g # symlink to local dir
➜  npm list -g eshost-cli # eshost-cli@9.0.0-alpha 🎉

Hermes now works (upstream fix awaiting review/merge)

➜  eshost -e "42"
#### engine262
42

#### hermes
42

#### javascriptcore
42

#### spidermonkey
42

#### v8
42

#### xs
42