Fix Function::NumberOfImplicitParameters() for closure functions.

runtime/vm/object.cc

Index: runtime/vm/object.cc
===================================================================
--- runtime/vm/object.cc	(revision 9951)
+++ runtime/vm/object.cc	(working copy)
@@ -3793,6 +3793,9 @@
       return 2;  // Instance, phase.
     }
   }
+  if (kind() == RawFunction::kClosureFunction) {
+    return 0;
+  }
   if (!is_static()) {

[Ivan Posva, 2012/07/26 18:30:55]

How about

if (!is_static() && (kind() != RawFunction::kClosureFunction) {

then you return 0 below with the correct comment: "No implicit parameters."

The way it is written now is kind of magic. At least adding a comment in the
added code would help understanding.

[regis, 2012/07/26 18:43:19]

Done.

     return 1;  // Receiver.
   }