Fix errors in code patch by Scala 3 compiler

It seems that when the compiler rewrites source code to the no-indentation
based syntax, it omits closing curly braces in some spots.

I didn't discover a specific pattern in the spots where the closing '}'
are omitted. So, it's not obvious to create minimised reproductions...

Author: eloots

src/main/scala/org/lunatechlabs/dotty/SudokuSolverMain.scala

@@ -48,4 +48,5 @@ object SudokuSolverMain {
     println(s"${GREEN}Hit RETURN to stop solver${RESET}")
     StdIn.readLine()
     system.terminate()
+  }
 }

src/main/scala/org/lunatechlabs/dotty/sudoku/ReductionRules.scala

@@ -38,4 +38,5 @@ object ReductionRules {
     reductionSet.zipWithIndex.foldRight(Vector.empty[CellContent]) { case ((cellValue, cellIndex), acc) =>
       cellIndexToReducedValue.getOrElse(cellIndex, cellValue) +: acc
     }
+  }
 }

src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuDetailProcessor.scala

@@ -46,6 +46,7 @@ object SudokuDetailProcessor {
     def sendUpdate(id: Int, cellUpdates: CellUpdates)(implicit sender: ActorRef[Response]): Unit =
       sender ! BlockUpdate(id, cellUpdates)
     def processorName(id: Int): String = s"blk-processor-$id"
+  }
 }
 
 class SudokuDetailProcessor[DetailType <: SudokuDetailType: UpdateSender] private (
@@ -73,6 +74,7 @@ class SudokuDetailProcessor[DetailType <: SudokuDetailType: UpdateSender] privat
             val updateSender = implicitly[UpdateSender[DetailType]]
             updateSender.sendUpdate(id, stateChanges(state, transformedUpdatedState))(replyTo)
             operational(id, transformedUpdatedState, isFullyReduced(transformedUpdatedState))
+          }
         }
 
       case Update(_, replyTo) =>
@@ -105,4 +107,5 @@ class SudokuDetailProcessor[DetailType <: SudokuDetailType: UpdateSender] privat
   private def isFullyReduced(state: ReductionSet): Boolean = {
     val allValuesInState = state.flatten
     allValuesInState == allValuesInState.distinct
+  }
 }

src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuIO.scala

@@ -54,17 +54,20 @@ object SudokuIO {
             else {
               cachedLine = Some(line)
               true
+            }
           }
           catch {
             case e: java.io.IOError =>
               throw new IllegalStateException(e.toString)
+          }
       }
 
       override def next(): String = {
         if !hasNext then throw new NoSuchElementException("No more lines in file")
         val currentLine = cachedLine.get
         cachedLine = None
         currentLine
+      }
     }
     override def toString: String =
       "{Lines of " + file.getAbsolutePath + "}"
@@ -92,4 +95,5 @@ object SudokuIO {
         .zipWithIndex
 
     convertFromCellsToComplete(cellsIn)
+  }
 }

src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolverSettings.scala

@@ -19,4 +19,5 @@ class SudokuSolverSettings(config: Config) {
 
     val SendInterval: FiniteDuration =
       Duration(config.getDuration("sudoku-solver.problem-sender.send-interval", Millis), Millis)
+  }
 }

src/main/scala/org/lunatechlabs/dotty/sudoku/package.scala

@@ -33,6 +33,7 @@ package object sudoku {
       }
       yield y
       SudokuField(sudoku)
+    }
   }
 
   implicit class SudokuFieldOps(val sudokuField: SudokuField) extends AnyVal {
@@ -78,4 +79,5 @@ package object sudoku {
         .map { case (c, i) =>
           RowUpdate(i, c.map(_.swap))
         }
+  }
 }