Handle super calls in blocks

Author: liufengyun

compiler/src/dotty/tools/dotc/ast/TreeInfo.scala

@@ -837,6 +837,7 @@ trait TypedTreeInfo extends TreeInfo[Type] { self: Trees.Instance[Type] =>
   final def splitAtSuper(constrStats: List[Tree])(implicit ctx: Context): (List[Tree], List[Tree]) =
     constrStats.toList match {
       case (sc: Apply) :: rest if sc.symbol.isConstructor => (sc :: Nil, rest)
+      case (block @ Block(_, sc: Apply)) :: rest if sc.symbol.isConstructor => (block :: Nil, rest)
       case stats => (Nil, stats)
     }
 

tests/run/i1441.scala

@@ -0,0 +1,10 @@
+class FrameworkTest(val cls: Class[_], val format: Int = 1, val expected: String)
+
+class FixtureFrameworkSuite
+object FixtureFrameworkSuite extends FrameworkTest(
+    classOf[FixtureFrameworkSuite],
+    expected = "test"
+)
+
+@main
+def Test = FixtureFrameworkSuite