Fix printing catch clause

Author: nicolasstucki

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

@@ -383,8 +383,12 @@ class ShowSourceCode[T <: Tasty with Singleton](tasty0: T) extends Show[T](tasty
         this += "try "
         printTree(body)
         if (cases.nonEmpty) {
-          this += " catch "
-          printCases(cases, lineBreak())
+          this += " catch {"
+          indented {
+            this += lineBreak()
+            printCases(cases, lineBreak())
+          }
+          this += lineBreak() += "}"
         }
         finallyOpt match {
           case Some(t) =>

tests/pos/simpleTry.decompiled

@@ -0,0 +1,7 @@
+/** Decompiled from out/posTestFromTasty/pos/simpleTry/Foo.class */
+class Foo() {
+  try 3 catch {
+    case e: scala.Throwable =>
+      4
+  } finally scala.Predef.println(6)
+}

tests/pos/simpleTry.scala

@@ -0,0 +1,7 @@
+
+class Foo {
+  try 3
+  catch {
+    case e: Throwable => 4
+  } finally println(6)
+}