Add a type kind to TypedSelector. A typed selector can either be

sdk/lib/_internal/compiler/implementation/js_backend/backend.dart

Index: sdk/lib/_internal/compiler/implementation/js_backend/backend.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/js_backend/backend.dart	(revision 18249)
+++ sdk/lib/_internal/compiler/implementation/js_backend/backend.dart	(working copy)
@@ -864,10 +864,8 @@
     // make sure all [noSuchMethod] methods know they might take a
     // [JsInvocationMirror] as parameter.
     HTypeList types = new HTypeList(1);
-    types[0] = new HType.fromBoundedType(
-        compiler.jsInvocationMirrorClass.computeType(compiler),
-        compiler,
-        false);
+    types[0] = new HBoundedType.exact(
+        compiler.jsInvocationMirrorClass.computeType(compiler));
     argumentTypes.registerDynamicInvocation(types, new Selector.noSuchMethod());
   }