Fix super noSuchMethod handling.

pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
index 37dc74b9d18c41776c02584a3b20fefbd0e0194d..0d5067ed22372f8f86d59e97e31582f09dfa908d 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
@@ -7,6 +7,7 @@ library dart2js.ir_builder_task;
 import '../closure.dart' as closure;
 import '../common.dart';
 import '../common/names.dart' show
+    Identifiers,
     Names,
     Selectors;
 import '../common/tasks.dart' show
@@ -1899,6 +1900,15 @@ class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
+  ir.Primitive visitUnresolvedSuperSet(
+      ast.Send node,
+      Element element,
+      ast.Node rhs, _) {
+    return buildInstanceNoSuchMethod(
+        elements.getSelector(node), elements.getTypeMask(node), [visit(rhs)]);
+  }
+
+  @override
   ir.Primitive visitThisGet(ast.Identifier node, _) {
     if (irBuilder.state.thisParameter == null) {
       // TODO(asgerf,johnniwinther): Should be in a visitInvalidThis method.
@@ -3330,10 +3340,15 @@ class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   ir.Primitive buildInstanceNoSuchMethod(Selector selector,
       TypeMask mask,
       List<ir.Primitive> arguments) {

[asgerf, 2016/02/08 18:42:44]

The name of this method doesn't seem right anymore. Do all the uses of this
method require the super lookup semantics? If so, could you please rename this
to buildSuperNoSuchMethod or something like that?

[Johnni Winther, 2016/02/09 08:37:29]

Done.

-    return irBuilder.buildDynamicInvocation(
-        irBuilder.buildThis(),
-        Selectors.noSuchMethod_,
-        mask,
+    ClassElement cls = elements.analyzedElement.enclosingClass;
+    MethodElement element = cls.lookupSuperMember(Identifiers.noSuchMethod_);
+    if (!Selectors.noSuchMethod_.signatureApplies(element)) {
+      element = compiler.coreClasses.objectClass.lookupMember(
+          Identifiers.noSuchMethod_);
+    }
+    return irBuilder.buildSuperMethodInvocation(
+        element,
+        Selectors.noSuchMethod_.callStructure,
         [irBuilder.buildInvocationMirror(selector, arguments)]);
   }