closure calls (just the invocation part).

frog/leg/leg.dart

Index: frog/leg/leg.dart
diff --git a/frog/leg/leg.dart b/frog/leg/leg.dart
index 1a18770bcf452e587431ec7b49c3b7dd425e70be..4f881ce02d534261113ba8ff03a2b6f0be9dffc4 100644
--- a/frog/leg/leg.dart
+++ b/frog/leg/leg.dart
@@ -25,6 +25,6 @@
 
 final bool GENERATE_SSA_TRACE = false;
 
-void unreachable() {
-  throw const Exception("Internal Error (Leg): UNREACHABLE");
+void unreachable([msg = "UNREACHABLE"]) {

[kasperl, 2012/01/05 07:01:52]

msg -> message

[floitsch, 2012/01/05 12:18:38]

Done.

[ngeoffray, 2012/01/05 14:05:46]

Since we'll get rid of this method, I suggest you don't change it, but instead
use the compiler error reporting methods. The other uses of unreachable can stay
around for now, but we need to change them.

[floitsch, 2012/01/24 13:28:37]

Done.

+  throw new Exception("Internal Error (Leg): $msg");
 }