Hermes Gambit shows ambiguous error when reading a non-existant spell

[Nootathotep]

steps:

1. use Introspection and Retrospection to put a nonsense pattern on the iota.

2. use Hermes's Gambit to cast it.

result:

Hermes's Gambit itself appears red, and the error message "That pattern isn't associated with any action" makes it look like Hermes's Gambit doesn't exist.

[gamma-delta]

Planning to fix this by prefixing every mishap with the name of the action that caused the error (right now it's done ad-hoc per mishap, makes debugging spell circles extremely frustrating)

[object-Object]

I think it would also help to have a "traceback" for mishaps, for debugging nested meta-eval.

[poolcritter]

I think it would also help to have a "traceback" for mishaps, for debugging nested meta-eval.

as in printing a summary of the continuation?

[Robotgiggle]

Fixed in #951