Set 'isSyntheticDefault' for default constructors.

pkg/front_end/testcases/void-methods.dart.direct.expect

Index: pkg/front_end/testcases/void-methods.dart.direct.expect
diff --git a/pkg/front_end/testcases/void-methods.dart.direct.expect b/pkg/front_end/testcases/void-methods.dart.direct.expect
index e0dc634666252499a95fbdf2f07949aae8e01fd7..6ae6f5c2059fc2bd523c4023fee4afeeebd7614e 100644
--- a/pkg/front_end/testcases/void-methods.dart.direct.expect
+++ b/pkg/front_end/testcases/void-methods.dart.direct.expect
@@ -4,13 +4,13 @@ import "dart:core" as core;
 
 class Foo extends core::Object {
   field core::List<dynamic> list = <dynamic>[1, 2, 3];
-  constructor •() → void
+  default constructor •() → void
     : super core::Object::•()
     ;
   set first(dynamic x) → dynamic
-    this.list.[]=(0, x);
+    return let final dynamic #t1 = this.list in let final dynamic #t2 = 0 in let final dynamic #t3 = x in let final dynamic #t4 = #t1.[]=(#t2, #t3) in #t3;

[Johnni Winther, 2017/07/14 09:22:02]

Why have these changed?

[ahe, 2017/07/14 09:42:26]

That's probably a mistake. The original version is correct (and originally from
dartk).

   operator []=(dynamic x, dynamic y) → dynamic
-    this.list.[]=(x, y);
+    return let final dynamic #t5 = this.list in let final dynamic #t6 = x in let final dynamic #t7 = y in let final dynamic #t8 = #t5.[]=(#t6, #t7) in #t7;
   method clear() → void
     return this.list.clear();
 }