delete all uses of panicln by rewriting them using panic or,
in the tests, println+panic.
gofmt some tests too.

R=rsc
CC=golang-dev
https://golang.org/cl/741041
diff --git a/test/fixedbugs/bug201.go b/test/fixedbugs/bug201.go
index e72d8f9..f7db62f 100644
--- a/test/fixedbugs/bug201.go
+++ b/test/fixedbugs/bug201.go
@@ -6,31 +6,43 @@
 
 package main
 
-type T1 struct { x, y int; }
-type T2 struct { z, w byte; }
+type T1 struct {
+	x, y int
+}
+type T2 struct {
+	z, w byte
+}
 type T3 T1
 
 type MyInt int
-func (MyInt) m(*T1) { }
+
+func (MyInt) m(*T1) {}
 
 func main() {
 	{
-		var i interface{} = new(T1);
-		_, ok1 := i.(*T1);
-		_, ok2 := i.(*T2);
-		_, ok3 := i.(*T3);
+		var i interface{} = new(T1)
+		_, ok1 := i.(*T1)
+		_, ok2 := i.(*T2)
+		_, ok3 := i.(*T3)
 		if !ok1 || ok2 || ok3 {
-			panicln("*T1", ok1, ok2, ok3);
+			println("*T1", ok1, ok2, ok3)
+			panic("fail")
 		}
 	}
 	{
-		var i interface{} = MyInt(0);
-		_, ok1 := i.(interface{ m(*T1) });
-		_, ok2 := i.(interface{ m(*T2) });
-		_, ok3 := i.(interface{ m(*T3) });
+		var i interface{} = MyInt(0)
+		_, ok1 := i.(interface {
+			m(*T1)
+		})
+		_, ok2 := i.(interface {
+			m(*T2)
+		})
+		_, ok3 := i.(interface {
+			m(*T3)
+		})
 		if !ok1 || ok2 || ok3 {
-			panicln("T", ok1, ok2, ok3);
+			println("T", ok1, ok2, ok3)
+			panic("fail")
 		}
 	}
 }
-