Update rasta direct expectations.

pkg/front_end/test/fasta/rasta/abstract_constructor.dart.direct.expect

Index: pkg/front_end/test/fasta/rasta/abstract_constructor.dart.direct.expect
diff --git a/pkg/front_end/test/fasta/rasta/abstract_constructor.dart.direct.expect b/pkg/front_end/test/fasta/rasta/abstract_constructor.dart.direct.expect
index 94c244e375a3410cb7d40e831dccf6cdca34a9a7..125bce0f4758b08262640afd51d53ca65b1dd41a 100644
--- a/pkg/front_end/test/fasta/rasta/abstract_constructor.dart.direct.expect
+++ b/pkg/front_end/test/fasta/rasta/abstract_constructor.dart.direct.expect
@@ -3,9 +3,10 @@ import self as self;
 import "dart:core" as core;
 
 abstract class C extends core::Object {
-  constructor •() → self::C
-    : super core::Object::•();
+  constructor •() → void
+    : super core::Object::•()
+    ;
 }
 static method main() → dynamic {
-  invalid-expression;
+  throw new core::NoSuchMethodError::•(null, #C, <dynamic>[], <dynamic, dynamic>{}, null);
 }