hereditary-shims tests hit infinite loop

[warner]

Our best progress so far is on the hereditary-shims branch. To run the test, do this:

• git clone this repo, git checkout hereditary-shims, then run git submodule init --update to populate the proposal-realms/ direcfory
• npm install to get the dependencies
• patch proposal-realms to get a version that doesn't freeze globals: cd proposal-realms; git remote add agoric https://github.com/agoric/proposal-realms; git remote update; git diff master...agoric/unfreeze-globals |patch -p1
• run the only test that still halfway-works: ./node_modules/.bin/tape -r esm test/test_hereditary_realm.js

This currently gets stuck with an infinite loop as it attempts to create a second-level realm from inside a new first-level realm (the test named "nested realm, no shim"). The code all goes through src/hereditary.js, which is surely incomplete.

[warner]

We switched approaches, so this is no longer relevant.