Dangling parentheses check does not handle single-line comments

[dtobin]

What happened?

The rewrite step introduced by #687 does not correctly handle single-line comments

  foo // this is a comment
)

will be rewritten to

  foo // this is a comment)

which no longer compiles.

This also needs to handle the case where the entire line is a comment, i.e.

  foo
  // whole line is a comment
)

so you probably don't want to move the parenthesis to immediately before the comment

What did you want to happen?

Probably the simplest solution is to perform no rewrite in this case?

[stale]

This issue has been automatically marked as stale because it has not been touched in the last 60 days. Please comment if you'd like to keep it open, otherwise it'll be closed in 7 days time.

[iamdanfox]

Closing out because we've delete the dangling parens thing in favour of a code formatter.