Bind this in ng2 hack code

lib/src/compiler/code_generator.dart

Index: lib/src/compiler/code_generator.dart
diff --git a/lib/src/compiler/code_generator.dart b/lib/src/compiler/code_generator.dart
index 36c376d2a03b58b80dc813d39a4bdf575ad7fe3c..09475570a8ee2963fde5f40ba0bf68d06d23ebc0 100644
--- a/lib/src/compiler/code_generator.dart
+++ b/lib/src/compiler/code_generator.dart
@@ -3223,8 +3223,8 @@ class CodeGenerator extends GeneralizingAstVisitor
         var vars = <JS.MetaLetVariable, JS.Expression>{};
         var l = _visit(_bindValue(vars, 'l', target));
         jsTarget = new JS.MetaLet(vars, [
-          js.call('(#[(#[dart._extensionType]) ? dartx[#] : #])',
-              [l, l, memberName, memberName,])
+          js.call('(#[(#[dart._extensionType]) ? dartx[#] : #]).bind(#)',

[vsm, 2016/08/29 22:01:04]

FYI: this was the path triggered by the example.

+              [l, l, memberName, memberName, l])
         ]);
         if (typeArgs != null) jsTarget = new JS.Call(jsTarget, typeArgs);
         return new JS.Call(jsTarget, args);
@@ -4565,8 +4565,8 @@ class CodeGenerator extends GeneralizingAstVisitor
         var vars = <JS.MetaLetVariable, JS.Expression>{};
         var l = _visit(_bindValue(vars, 'l', target));
         return new JS.MetaLet(vars, [
-          js.call('(#[(#[dart._extensionType]) ? dartx[#] : #])(#)',
-              [l, l, memberName, memberName, _visitList(args)])
+          js.call('(#[(#[dart._extensionType]) ? dartx[#] : #]).call(#, #)',

[vsm, 2016/08/29 22:01:04]

apply is the one that takes an array.  :-)

+              [l, l, memberName, memberName, l, _visitList(args)])
         ]);
       }
       // dynamic dispatch