Add missing line break

Author: nicolasstucki

library/src/scala/tasty/util/ShowSourceCode.scala

@@ -533,6 +533,8 @@ class ShowSourceCode[T <: Tasty with Singleton](tasty0: T) extends Show[T](tasty
         body match {
           case Term.Block(stats, expr) =>
             printTrees(stats, lineBreak())
+            if (stats.nonEmpty)
+              this += lineBreak()
             printTree(expr)
           case body =>
             printTree(body)

tests/pos/simpleMatchCase.decompiled

@@ -0,0 +1,10 @@
+/** Decompiled from out/posTestFromTasty/pos/simpleMatchCase/Foo.class */
+class Foo() {
+  def foo: scala.Unit = {
+    "c" match {
+      case x =>
+        scala.Predef.println("a")
+        scala.Predef.println("b")
+    }
+  }
+}

tests/pos/simpleMatchCase.scala

@@ -0,0 +1,10 @@
+
+class Foo {
+  def foo: Unit = {
+    "c" match {
+      case x =>
+        println("a")
+        println("b")
+    }
+  }
+}