Clarify error for unbound identifiers and add/fix a few comments #1699
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
I think "Missing identifier" is not a good error, @odersky agreed and suggested "No definition for
a
was found." (#1683 (comment)), and I replaced "definition" with "declaration".I also tried improving the explanation.
Also a few other minor issues in separate commits (I'd PR them separately but IIUC that'd be noise to you).