Lint name strings for…

[ddbeck]

We ought to check for style and consistency in name strings.

Some things we ought to check for:

• Leading or trailing spaces
• Markdown syntax (e.g., `code` or *emphasis*)
• Balanced braces, brackets, and parentheses
• Use of ellipses (…) and spaces
• Uniqueness
• Double (or more) spaces (e.g., Don't let this→ ←happen)

Prompted by #2017. Related to #1935.

[captainbrosset]

Other possible checks:

• Check that <...> are balanced (e.g. no name with < but missing >).
• The above could also be expanded to (...).
• Check no other feature already has the exact same name.

[ddbeck]

Good ideas. I added them to the checklist, plus a couple more for ellipses and double (or triple) white space characters.