Fix FatalError's constructor to forward msg to super.

sjrd · sjrd · commit 9218b1c925a2 · 2016-02-24T11:04:22.000+01:00
Previously, getMessage() always returned `null`, causing NPEs
when trying to report a FatalError.
diff --git a/src/dotty/tools/dotc/Driver.scala b/src/dotty/tools/dotc/Driver.scala
@@ -102,5 +102,5 @@ abstract class Driver extends DotClass {
   }
 }
 
-class FatalError(msg: String) extends Exception
+class FatalError(msg: String) extends Exception(msg)
 

Original file line number	Diff line number	Diff line change
`@@ -102,5 +102,5 @@ abstract class Driver extends DotClass {`
`102`	`102`	`}`
`103`	`103`	`}`
`104`	`104`
`105`		`-class FatalError(msg: String) extends Exception`
	`105`	`+class FatalError(msg: String) extends Exception(msg)`
`106`	`106`