I was surprised to see so many legacy lambda syntax examples in the
documentation. This replaces all of them with the new syntax -- excluding
the handful of cases meant to explicitly verify the legacy form is still
valid. This also adds a link to the issue in the release notes which
documents the change in syntax.
Related #664
Two different strategies are used:
- For commands that don't actually depend on the editor (but happens to live
inside the edit: module), their tests are changed to use the evaltest
framework.
- For commands that do depend on the editor, a new helper
testThatOutputErrorIsBubbled is used to test them.
Also fix a bug where edit:complete-getopt does not correctly bubble the
exception thrown from callbacks, and where matchers do not bubble output errors.
