Cosmetic fix in Space

Author: abeln

compiler/src/dotty/tools/dotc/transform/patmat/Space.scala

@@ -750,14 +750,10 @@ class SpaceEngine(implicit ctx: Context) extends SpaceLogic {
 
     if (!redundancyCheckable(sel)) return
 
-    val targetSpace = if (ctx.explicitNulls) {
-      Typ(selTyp, true)
-    } else {
-      if (selTyp.classSymbol.isPrimitiveValueClass)
-        Typ(selTyp, true)
-      else
-        Or(Typ(selTyp, true) :: constantNullSpace :: Nil)
-    }
+    val targetSpace =
+      if (ctx.explicitNulls) Typ(selTyp, true)
+      else if (selTyp.classSymbol.isPrimitiveValueClass) Typ(selTyp, true)
+      else Or(Typ(selTyp, true) :: constantNullSpace :: Nil)
 
     // in redundancy check, take guard as false in order to soundly approximate
     def projectPrevCases(cases: List[CaseDef]): Space =