Generative constructor factories for native objects

sdk/lib/_internal/compiler/implementation/ssa/nodes.dart

Index: sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart b/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
index c3dc5a6f479d6dd96a32eb1d253dbade24887667..af8648da3eba86fc0bdf415df85779a4dd728fc5 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
@@ -1454,6 +1454,9 @@ class HInvokeSuper extends HInvokeStatic {
 }
 
 class HInvokeConstructorBody extends HInvokeStatic {
+  // The 'inputs' are
+  //     [receiver, arg1, ..., argN] or
+  //     [interceptor, receiver, arg1, ... argN].
   HInvokeConstructorBody(element, inputs)
       : super(element, inputs, HType.UNKNOWN);