A single comment at the end of a block that has a single item prints strangely.

This is a very specific case that our printer doesn't handle well right now.

for (i in 0 to 1) {
  print_newline();
  /* comment */
}

It prints to something like:

for (i in 0 to 1) {
  print_newline();
            /* comment */
}

The reason is that there isn't enough location information retained.
This seems like a small fix, but it's a little more involved than you'd expect. Probably best to tackle this one after swapping out the formatting library.

The issue names no files or tests, but identifies the formatter/printer and a planned formatting-library replacement. Start by locating the printer and reproducing the single-item block example, then inspect how location information is retained. Done means the trailing comment no longer receives excessive indentation.