Merge #10552

10552: fix: Fix missing_fields diagnostic fix replacing wrong text ranges r=Veykril a=Veykril

Fixes #5393 by replacing the problematic behaviour there with a new "problem"

It replaces the correct range now, but it potentially discards the whitespace in the macro input. This is the best we can do currently until we get a formatter.

bors r+

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>