XXX accept new error report in test

Blaisorblade · Blaisorblade · commit 75ba8578ed50 · 2018-12-02T18:05:36.000+01:00
After porting the commit from #4036, this line newly gives an error. Might be OK, investigate.
diff --git a/tests/neg/i50-volatile.scala b/tests/neg/i50-volatile.scala
@@ -10,7 +10,7 @@ class Test {
   }
   lazy val o: A & B = ???
 
-  class Client extends o.Inner                          // old-error // old-error
+  class Client extends o.Inner                          // error // old-error
 
   def xToString(x: o.X): String = x                     // error
 

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@ class Test {`
`10`	`10`	`}`
`11`	`11`	`lazy val o: A & B = ???`
`12`	`12`
`13`		`- class Client extends o.Inner // old-error // old-error`
	`13`	`+ class Client extends o.Inner // error // old-error`
`14`	`14`
`15`	`15`	`def xToString(x: o.X): String = x // error`
`16`	`16`