Fix: improve report location for object-curly-spacing

[mdjermanovic]

What is the purpose of this pull request? (put an "X" next to item)

[X] Other, please explain:

Change object-curly-spacing report locations.

What changes did you make? (Give an overview)

• For missing spaces, the difference is small, the rule will now report complete loc of the curly braces instead of just loc.start.
• For disallowed spaces, the rule will now report the location of spaces (the range that should be removed) instead of the location of curly braces. like this:

Is there anything you'd like reviewers to focus on?

Since this doesn't change the start line, it produces neither more nor fewer warnings, even in the case of eslint-disable-* comments.

I guess this could be accepted as a bug fix?

[ilyavolodin]

LGTM. Yes, this should be a bug fix

[kaicataldo]

LGTM, thanks!