src/test/ui/parser/issue-51602.stderr

error: expected `{`, found keyword `in`
  --> $DIR/issue-51602.rs:2:10
   |
LL |     if i in 1..10 {
   |     --   ^^ expected `{`
   |     |
   |     this `if` expression has a condition, but no block

error: aborting due to previous error